The Effect of Environmental Albedo on the Energy Use of a Selected House in Amman-Jordan

Saad S. Alrwashdeh; Saad S. Alrwashdeh

doi:10.3934/environsci.2023035

AIMS Environmental Science

2023, Volume 10, Issue 5: 628-643. doi: 10.3934/environsci.2023035

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Research article Special Issues

The Effect of Environmental Albedo on the Energy Use of a Selected House in Amman-Jordan

Saad S. Alrwashdeh ^,

Mechanical Engineering Department, Faculty of Engineering, Mutah University, P.O Box 7, Al-Karak 61710 Jordan

Received: 14 August 2023 Revised: 14 September 2023 Accepted: 15 October 2023 Published: 24 October 2023

I explore the effect that albedo has on the amount of solar energy collected as well as the effectiveness of various building materials used in Jordan's varied construction industry. Albedo, which is the reflection of incoming radiation by surfaces, is of crucial relevance in minimizing the damage that solar radiation may do to building components like windows. The construction sector in Jordan is a substantial contributor to the overall level of energy consumption in the country because of the wide variety of building types, purposes and technologies found there. The findings of this research show that substances with greater albedo values produce the best results in terms of energy gains. These findings are supported by in-depth albedo value analyses and provide useful insights that may be used to improve building design and construction methods in Jordan, which will eventually lead to increased energy efficiency and sustainability within the construction sector.

Keywords:

Citation: Saad S. Alrwashdeh. The Effect of Environmental Albedo on the Energy Use of a Selected House in Amman-Jordan[J]. AIMS Environmental Science, 2023, 10(5): 628-643. doi: 10.3934/environsci.2023035

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Abstract

1. Introduction

In numerous engineering and scientific domains, nonlinear fractional partial differential equations (NFDEs) have gained significant importance in the description and modelling of intricate processes. The memory and inherited characteristics of the system being modelled can be precisely captured via NFPDEs. These equations are particularly helpful for explaining anomalous diffusion phenomena and have a wide range of applications in disciplines like chemistry, physics, engineering, finance, biology, and economics ^{[1,2,3,4,5,6]}. As a result, in many application domains, the exploration of NFPDEs is crucial to comprehending and forecasting the behavior of complex systems. Nonetheless, there are special difficulties in resolving and interpreting fractional derivatives due to their non-locality and non-linearity. The solution and analysis of these equations may require the development of new methods and tools, as traditional analytical and numerical approaches might not be directly relevant. Notwithstanding these difficulties, research on NFPDEs has produced significant advances in a number of scientific and engineering domains ^[7,8,9]. Research opportunities have increased and our understanding of complicated processes has improved as a result of the development of new analytical and numerical techniques for solving and analyzing NFPDEs ^[10,11,12]. Exact solutions to nonlinear fractional problems can currently be obtained by a variety of effective methods, such as the generalized projective Riccati equation approach ^[13], sine-Gordon expansion method ^[14], generalized Riccati method and the auxiliary ordinary differential equation method ^[15], Lie symmetry approach ^[16], first integral method ^[17], modified Kudryashov method ^[18], extended exp ${(-\phi(\xi))}$ -expansion method ^[19], modified auxiliary equation method ^[20], unified method ^[21], $(\frac{G'}{G})$ -expansion methods ^[22,23,24], Khater methods ^[25,26], Poincaré-Lighthill-Kuo method ^[27], Riccati-Bernoulli Sub-ODE ^[28], exp-function method ^[29], fractional Sin-Gordon method ^[30], sub-equation method ^[31], tanh-method ^[32], extended direct algebraic method ^{[33,34,35,36]}, Sardar sub-equation method ^[37], exponential rational function method ^[38], and so on ^{[39,40,41,42,43,44]}.

Kundu et al. ^[45] introduced the Kundu-Mukherjee-Naskar equation (KMNE) for the first time in $2014$ and found optical soliton solutions for it. The KMNE has been the subject of extensive research recently. Its wave events are crucial for accurately modelling propagation pulses in high-speed data transfer in communication systems, optical fibers and the ocean currents of rogue waves ^[46,47,48]. One common application for optical fibers is the transmission of light between their two ends. Their long-distance and faster data transmission rate compared to wires makes them commonly employed in optical fiber communications. The goal of the current study is to construct and analyze optical soliton solutions for the gFKMNE, a fractional generalization of KMNE, which exhibits the following dimensionless display ^[49]:

$\begin{equation} i D^{\delta}_{t}z+a D^{\beta}_{y}(D^{\alpha}_{x} z)+i b z(z D^{\alpha}_{x} z^{*}-z^{*} D^{\alpha}_{x}) = 0, \end{equation}$

(1.1)

wherein $0 < \alpha, \beta, \delta \leq1$ , $z = z(t, x, y)$ is the quantity that represents a complex wave envelope, $z^{*}$ is the complex conjugate of $z$ . Furthermore, the dispersion term and the nonlinearity term are indicated by the two parameters $a$ , $b$ respectively. The wave's temporal history is represented by the first term in Eq (1), which is succeeded by the dispersion term $a D^{\beta}_{y}(D^{\alpha}_{x} z)$ . Ultimately, the coefficient of $b$ that is changed from the standard Kerr law nonlinearity represents the nonlinear portion. In optical fibers and communication systems, the pulse propagation is described by this equation. The fractional derivatives $D^{\alpha}_{x}(\circ)$ , $D^{\beta}_{y}(\circ)$ , and $D^{\delta}_{t}(\circ)$ are the generalized conformable fractional derivatives (gCFDs) of order $\alpha$ , $\beta$ , and $\delta$ respectively.

In many applications, such as irrigation and river flows, tidal waves, weather research and tsunami prediction, Eq (1.1) is used. Due to such significance, many researchers have developed an interest in examining Eq (1.1). For instance, Eq (1.1) was solved with new exact solutions by Günerhan et al. ^[50] through the use of an enhanced direct algebraic approach. Using the csch-approach, extended tanh-coth method, and extended rational sinh-cosh method, Rizvi et al. ^[51] were able to get the singular soliton, dark soliton, combination dark-singular soliton, and other hyperbolic solutions for Eq (1.1). Talarposhti et al. ^[52] derived optical soliton solutions for the KMNE using the exp-function approach. Onder et al. ^[53] used the novel Kudryashov techniques along with the Sardar sub-equation to introduce optical soliton solutions for the KMNE. Zafar et al. ^[54] found new soliton solutions for the KMNE by employing the exp-function approach and the extended Jacobi's elliptic expansion function. Kumar et al. ^[55] used the new auxiliary equation approach with the generalized Kudryashov method to find dark, bright, periodic U-shaped, and singular soliton solutions for Eq (1.1). Furthermore, this equation was investigated by other authors through the use of new precise solution techniques such the semi-inverse approach ^[56], the extended trial function method ^[57], the sine-Gordon and sinh-Gordon expansion methods ^[58], the Hamiltonian-based algorithm ^[59], Laplace-Adomian decomposition method ^[60], and other methods ^{[61,62,63,64,65]}.

Inspired by current research, we seek to address gFKMNE expressed in (1.1) through two enhanced implementations of the $(\frac{G'}{G})$ -expansion technique: the extended $(\frac{G'}{G})$ -expansion method and the generalized $(r+\frac{G'}{G})$ -expansion method, which are based on the reduction of NFPDEs to integer-order NODEs produced by the model's wave transformation. The strategic techniques further transform the resultant NODEs into an algebraic system of nonlinear equations by assuming a series-form solution. These equations may then be solved using the Maple tool to produce dark soliton lattices for gFKMNE. The important solitons in these dark soliton lattices are organized regularly in an optical medium. Dark soliton formations are collections of dark solitaires arranged regularly inside a medium. They are frequently shaped like wave channels or optical fibers. Similar to the lattice of a crystal, these solitons are restricted to areas of decreased optical intensity within a larger field that retain their structure and amplitude while moving. Not only can dark soliton lattices be used to precisely control and manipulate optical waves, but they can also be used to process information and communications networks, provide insight into nonlinear optics phenomena, provide platforms for basic research on the behavior of wave propagation, and have potential applications in signal processing, optical communication, and sensing. Thus, dark soliton lattices offer a stimulating new topic for nonlinear optics research that will enable both basic and applied investigations ^[66,67,68].

The format of the present article is as follows: Section 1 provides an introduction. The operational mechanism for the $(\frac{G'}{G})$ -expansion methods and the description of gCFD are detailed in Section 2. We build many additional sets of optical soliton solutions for Eq (1.1) in Section 3. A few illustrations and a graphical representations of dark soliton lattices are presented and discussed in Section 4. Our study excursion comes to an end with the provided conclusion in Section 5.

2. Materials and methodology

In this section, the basic definition of used fractional derivative gCFD and the operational procedure of the proposed methods are presented.

2.1. The definition of gCFD

Explicit soliton solutions to nonlinear FPDEs can be obtained by taking use of the advantages that gCFDs have over conventional fractional derivative operators. Notably, alternate formulations of fractional derivatives do not provide the optical soliton solutions of Eq (1.1) because they violate the chain rule ^[69,70]. Consequently, gCFDs were added to Eq (1.1). ^[71] defined this derivative operator of order $\wp$ as follows:

$\begin{equation} ^{gCFD} D^\wp_\varphi z(\varphi) = \lim\limits_{\varpi \to 0} \frac{z( (\frac{\Gamma(n)}{\Gamma(n-\wp+1)})\varpi \varphi^{1-\wp}+\varphi)-z(\varphi)}{\varpi}, \quad \wp \in (0,1] \quad n \geq -1, \quad n \in R. \end{equation}$

(2.1)

We utilize the following characteristics of this derivative in this study:

$\begin{equation} ^{gCFD} D^\wp_\varphi \varphi^\gamma = \frac{\gamma \Gamma(n)}{\Gamma(n-\wp+1)} \varphi^{\gamma-\wp}, \quad \forall \gamma \in R, \end{equation}$

(2.2)

$\begin{equation} ^{gCFD} D^\wp_\varphi(\gamma_1\rho(\varphi)\pm \gamma_2\eta(\varphi)) = \gamma_1 {^{gCFD} D^\wp_\varphi(\rho(\varphi))}\pm \gamma_2 {^{gCFD} D^\wp_\varphi(\eta(\varphi))}, \end{equation}$

(2.3)

$\begin{equation} ^{gCFD} D^\wp_\varphi \omega[\zeta(\varphi)] = \omega'_\zeta(\zeta(\varphi)) {^{gCFD} D^\wp_\varphi \zeta(\varphi)} , \end{equation}$

(2.4)

where $\rho(\varphi)$ , $\eta(\varphi)$ , $\omega(\varphi)$ , and $\zeta(\varphi)$ are arbitrary differentiable functions, whereas $\gamma$ , $\gamma_1$ and $\gamma_2$ signify constants.

2.2. The working methodology of $(\frac{G'}{G})$ -expansion method

In this phase of our study, we discuss the processes of the $(\frac{G'}{G})$ -expansion approach, with a focus on solving the given general NFPDE:

$\begin{equation} R(z, D^{ \delta}_{t} z, D^{ \alpha}_{x_1}z, D^{ \beta}_{x_1} z,z D^{ \alpha}_{x_1} z, \ldots) = 0, \quad 0 < \alpha, \beta , \delta \leq1, \end{equation}$

(2.5)

where $z = z(t, x_1, x_2, x_3, \ldots, x_j)$ .

Equation (2.5) is solved using the following strategy:

(ⅰ). Starting with a variable transformation of the framework $z(t, x_1, x_2, x_3, \dots, x_j) = Z(\varphi)$ , where $\varphi$ can be stated in a number of ways. Equation (2.5) progresses via this transformation, resulting in the NODE that follows:

$\begin{equation} Q(Z,Z'Z,Z',\dots) = 0, \end{equation}$

(2.6)

where $Z' = \frac{d Z}{d\varphi}$ . On rare occasions, the NODE may become vulnerable to the homogeneous balancing principle due to the integration of Eq (2.6).

(ⅱ). Next, based on the method's version, we assume the following series-form solution for (2.6):

Version 1. For the extended $(\frac{G'}{G})$ -expansion method, we assume the following $(\frac{G'}{G})$ solution:

$\begin{equation} Z(\varphi) = \sum\limits_{l = -\rho}^{\rho}\tau_l(\frac{G'(\varphi)}{G(\varphi)})^l, \end{equation}$

(2.7)

Version 2. For the generalized $(r+\frac{G'}{G})$ -expansion method, we assume the following $(\frac{G'}{G})$ solution:

$\begin{equation} Z(\varphi) = \sum\limits_{l = -\rho}^{\rho}\tau_l(r+\frac{G'(\varphi)}{G(\varphi)})^l, \quad r \in R, \end{equation}$

(2.8)

where it is subsequently necessary to compute the values of $\tau_l's (l = -\rho... \rho)$ . The balance number $\rho$ , a positive integer in Eqs (2.7) and (2.8), can be found by homogeneously balancing the nonlinear terms and the derivative with the highest order terms in Eq (2.6). Greater accuracy can be achieved in determining the balance number $\rho$ by applying the following mathematical formulas:

$\begin{equation} D(\frac{d^p Z}{d\varphi^p}) = \rho+p, \ \ \text{and} \ \ D(Z^q (\frac{d^p Z}{d\varphi^p})^s) = \rho q+p(s+\rho), \end{equation}$

(2.9)

where $D$ expresses the degree of $Z(\varphi)$ , whereas $p, q$ , and $s$ are positive integers.

Moreover, the function $G(\varphi)$ in Eq (2.8) satisfies the subsequent second-order linear ODE:

$\begin{equation} G''(\varphi)+\lambda G'(\varphi)+\mu G(\varphi) = 0, \end{equation}$

(2.10)

where $\lambda, \mu$ are constants.

Moreover, with Eq (2.10)'s general solution, we have:

$\begin{equation} \bigg(\frac{G'(\varphi)}{G(\varphi)}\bigg) = \left\{ \begin{array}{ll} \frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}-\frac{1}{2} \,\lambda, & \kappa < 0, \\ \frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}-\frac{1}{2} \,\lambda, & \kappa > 0, \\ {\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}}\varphi}}, & \kappa = 0,\\ \end{array} \right. \end{equation}$

(2.11)

where $\kappa = \lambda^2-4\mu$ , while $\nu_1$ and $\nu_2$ in (2.11) are arbitrary constants.

(ⅲ). Next, we insert Eqs (2.8) or (2.7) into Eq (2.6) or into the Equation that we acquired from the integration of Eq (2.6), and we gather all the terms that have an analogous power of $(\frac{G'(\varphi)}{G(\varphi)})$ .

(ⅳ). The derived polynomial $(\frac{G'(\varphi)}{G(\varphi)})^i$ has all of its coefficients equal to zero, resulting in a collection of nonlinear algebraic equations in $\tau_l (l = -\rho..., \rho)$ , $\lambda$ , $\mu$ , and other necessary parameters.

(ⅴ). The unresolved parameters are discovered by using the Maple tool to solve the resulting system.

(ⅵ). To generate sets of soliton solutions for Eq (2.5), the values predicted from step 5 are subsequently substituted in Eqs (2.7) or (2.8), depending on the version.

3. Establishing optical soliton solutions for gFKMNE

We use the suggested methods in this section to build families of optical soliton solutions for (1.1). Using the subsequent wave modification as a component of the procedure, we can (1.1):

$\begin{equation} \begin{split} &z(x,y,t) = e^{i \xi} Z(\varphi),\quad \xi = \xi(t,x,y), \quad \varphi = \varphi(t,x,y), \\ & \varphi = {\frac {p_{{1}}\Gamma \left( n-\alpha+1 \right) {x}^{\alpha}}{\alpha \,\Gamma \left( n \right) }}+{\frac {p_{{2}}\Gamma \left( n-\beta+1 \right) {y}^{\beta}}{\beta\,\Gamma \left( n \right) }}-{\frac {\varrho\, \Gamma \left( n-\delta+1 \right) {t}^{\delta}}{\delta\,\Gamma \left( n \right) }}, \\ & \xi = -{\frac {q_{{1}}\Gamma \left( n-\alpha+1 \right) {x}^{\alpha}}{\alpha \,\Gamma \left( n \right) }}-{\frac {q_{{2}}\Gamma \left( n-\beta+1 \right) {y}^{\beta}}{\beta\,\Gamma \left( n \right) }}+{\frac { \omega\,\Gamma \left( n-\delta+1 \right) {t}^{\delta}}{\delta\, \Gamma \left( n \right) }}+\theta_{{0}}, \\ \end{split} \end{equation}$

(3.1)

where $Z(\varphi)$ symbolizes the amplitude part, $q_1$ and $q_2$ indicate wave numbers in the $x-$ and $y-$ directions, respectively, $\omega$ represents the frequency of the wave and $\theta_0$ is a constant, the parameters $p_1$ and $p_2$ indicate inverse width along the $x$ and $y$ directions, respectively, and $\varrho$ is used for the velocity, delivering the afterwards NODE from the real part of (1.1):

$\begin{equation} \begin{split} - a p_1 p_2 Z''-(\omega+a q_1 q_2) Z -2 b q_1 Z^3 = 0, \end{split} \end{equation}$

(3.2)

with the constraint from the imaginary part:

$\begin{equation} \varrho = -a \left( q_{{1}}p_{{2}}+q_{{2}}p_{{1}} \right). \end{equation}$

(3.3)

It is established that $\rho = 1$ when a homogeneous balancing condition between $Z''$ and $Z^3$ (given in (3.2)) has been created.

3.1. Implementation of the extended $(\frac{G'}{G})$ -expansion method

First, we wish to address (3.2) with the help of the extended $(\frac{G'}{G})$ -expansion method. Equation (2.7) yields the following closed form solution for (3.2) when $\rho = 1$ is substituted in it:

$\begin{equation} U(\varphi) = \sum\limits_{l = -1}^{1}\tau_l \bigg(\frac{G'(\varphi)}{G(\varphi)}\bigg)^l. \end{equation}$

(3.4)

By including (3.4) in (3.2) and bringing together terms with a comparable power of $\bigg(\frac{G'(\varphi)}{G(\varphi)}\bigg)$ , we get an expression based on the terms $\bigg(\frac{G'(\varphi)}{G(\varphi)}\bigg)$ . By setting the coefficients to zero, this formula can be converted into a set of algebraic nonlinear equations. The system can be solved using Maple in the following three cases of solutions:

Case 1.1.

$\begin{equation} \begin{split} &\tau_{{0}} = \frac{1}{2}\,{\frac {\tau_{{-1}}\lambda}{\mu}},\tau_{{1}} = 0,\tau_{ {-1}} = \tau_{{-1}},p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = {\frac {ap_{ {1}}p_{{2}}{\mu}^{2}}{b{\tau_{{-1}}}^{2}}},\\ &q_{{2}} = q_{{2}},\omega = -\frac{1}{2} \,{\frac {ap_{{1}}p_{{2}} \left( -4\,\mu\,b{\tau_{{-1}}}^{2}+2\,a{\mu} ^{2}q_{{2}}+{\lambda}^{2}b{\tau_{{-1}}}^{2} \right) }{b{\tau_{{-1}}}^{ 2}}}. \end{split} \end{equation}$

(3.5)

Case 1.2.

$\begin{equation} \begin{split} &\tau_{{0}} = \frac{1}{2}\,\tau_{{1}}\lambda,\tau_{{1}} = \tau_{{1}},\tau_{{-1}} = 0 ,p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = {\frac {ap_{{1}}p_{{2}}}{b{ \tau_{{1}}}^{2}}},\\ &q_{{2}} = q_{{2}},\omega = -\frac{1}{2}\,{\frac {ap_{{1}}p_{{2}} \left( -4\,\mu\,b{\tau_{{1}}}^{2}+2\,aq_{{2}}+{\lambda}^{2}b{\tau_{{1 }}}^{2} \right) }{b{\tau_{{1}}}^{2}}}. \end{split} \end{equation}$

(3.6)

Case 1.3.

$\begin{equation} \begin{split} \tau_{{0}} = \tau_{{0}},\tau_{{1}} = \tau_{{1}},\tau_{{-1}} = \tau_{{-1}},p _{{1}} = 0,p_{{2}} = p_{{2}},q_{{1}} = 0,q_{{2}} = q_{{2}},\omega = 0. \end{split} \end{equation}$

(3.7)

Considering case 1.1 and utilizing Eq (3.1), (3.4) and the corresponding general solution of (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 1.1.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,1}(t,x,y) = & e^{i \xi}\bigg( \tau_{{-1}} \left( \frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2} \,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2} \,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) ^{-1}+\frac{1}{2}\,{\frac { \tau_{{-1}}\lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.8)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,2}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\frac{1}{2}\,{\frac {\tau_{{-1}} \lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.9)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,1,3}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\frac{1}{2}\,{\frac {\tau_{{-1}} \lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.10)

Family 1.1.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,4}(t,x,y) = & e^{i \xi}\bigg( \tau_{{-1}} \left( \frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) ^{-1}+\frac{1}{2}\,{\frac { \tau_{{-1}}\lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.11)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,5}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\frac{1}{2}\,{\frac {\tau_{{-1}} \lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.12)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,1,6}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{-\frac{1}{2}\,\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\frac{1}{2}\,{\frac {\tau_{{-1}} \lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.13)

Family 1.1.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,7}(t,x,y) = & e^{i \xi}\bigg({\frac {\tau_{{-1}} \left( \nu_{{1}}+\nu_{{2}}\varphi \right) }{\nu_{ {2}}}}+\frac{1}{2}\,{\frac {\tau_{{-1}}\lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.14)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,1,8}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{{\varphi }^{-1}-\frac{1}{2}\,\lambda}}+\frac{1}{2}\,{\frac {\tau_ {{-1}}\lambda}{\mu}} \bigg). \end{split} \end{equation}$

(3.15)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,1,9}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{-1}}}{\lambda}}+\frac{1}{2}\,{\frac {\tau_{{-1}}\lambda}{ \mu}} \bigg), \end{split} \end{equation}$

(3.16)

where $\varphi = {\frac {p_{{1}}\Gamma \left(n-\alpha+1 \right) {x}^{\alpha}}{\alpha \, \Gamma \left(n \right) }}+{\frac {p_{{2}}\Gamma \left(n-\beta+1 \right) {y}^{\beta}}{\beta\, \Gamma \left(n \right) }}-{\frac {\varrho\, \Gamma \left(n-\delta+1 \right) {t}^{\delta}}{\delta\, \Gamma \left(n \right) }}$ $\xi = -{\frac {q_{{1}}\Gamma \left(n-\alpha+1 \right) {x}^{\alpha}}{\alpha \, \Gamma \left(n \right) }}-{\frac {q_{{2}}\Gamma \left(n-\beta+1 \right) {y}^{\beta}}{\beta\, \Gamma \left(n \right) }}+{\frac { \omega\, \Gamma \left(n-\delta+1 \right) {t}^{\delta}}{\delta\, \Gamma \left(n \right) }}+\theta_{{0}}$ for $q_1$ and $\omega$ defined in Eq (3.5).

Considering case 1.2 and utilizing Eq (3.1), (3.4) and the corresponding general solution of (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 1.2.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,1}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( \frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu _{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_ {{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.17)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,2}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( \frac{1}{2}\,\sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.18)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,2,3}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( \frac{1}{2}\,\sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.19)

Family 1.2.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,4}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( \frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) + \nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{ \nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}} \sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.20)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,5}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( \frac{1}{2}\,\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.21)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,2,6}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( -\frac{1}{2}\,\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.22)

Family 1.2.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,7}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+{\frac {\tau_{{1}}\nu_{{2}}}{\nu_{{1}}+\nu_{{2} }\varphi }} \bigg). \end{split} \end{equation}$

(3.23)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,2,8}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda+\tau_{{1}} \left( {\varphi }^{-1}-\frac{1}{2}\,\lambda \right) \bigg), \end{split} \end{equation}$

(3.24)

Considering case 1.3 and utilizing Eq (3.1), (3.4) and the corresponding general solution of (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1)

Family 1.3.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,1}(t,x,y) = & e^{i \xi}\bigg( \tau_{{-1}} \left( \frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2} \,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2} \,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) ^{-1}\\ &+\tau_{{0}}+\tau_ {{1}} \left( \frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) }}-\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.25)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,2}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\tau_{{0}}+\tau_{{1}} \left( \frac{1}{2} \sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\lambda \right) \bigg). \end{split} \end{equation}$

(3.26)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,3,3}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\tau_{{0}}+\tau_{{1}} \left( \frac{1}{2} \sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2} \lambda \right) \bigg). \end{split} \end{equation}$

(3.27)

Family 1.3.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,4}(t,x,y) = & e^{i \xi}\bigg( \tau_{{-1}} \left( \frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) ^{-1}\\ &+\tau_{{0}}+\tau_ {{1}} \left( \frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2} \,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.28)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,5}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{\frac{1}{2}\,\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\tau_{{0}}+\tau_{{1}} \left( \frac{1}{2} \sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\lambda \right) \bigg). \end{split} \end{equation}$

(3.29)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,3,6}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{-\frac{1}{2}\,\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) -\frac{1}{2}\,\lambda}}+\tau_{{0}}+\tau_{{1}} \left( - \frac{1}{2}\,\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) - \frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.30)

Family 1.3.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,7}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}} \left( \nu_{{1}}+\nu_{{2}}\varphi \right) }{\nu_{ {2}}}}+\tau_{{0}}+{\frac {\tau_{{1}}\nu_{{2}}}{\nu_{{1}}+\nu_{{2}} \varphi }} \bigg). \end{split} \end{equation}$

(3.31)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{1,3,8}(t,x,y) = & e^{i \xi}\bigg( {\frac {\tau_{{-1}}}{{\varphi }^{-1}-\frac{1}{2}\,\lambda}}+\tau_{{0}}+\tau_{{ 1}} \left( {\varphi }^{-1}-\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.32)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{1,3,9}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{-1}}}{\lambda}}+\tau_{{0}}-\frac{1}{2}\,\tau_{{1}}\lambda \bigg), \end{split} \end{equation}$

(3.33)

where $\varphi = {\frac {p_{{2}}\Gamma \left(n-\beta+1 \right) {y}^{\beta}}{\beta\, \Gamma \left(n \right) }}-{\frac {\varrho\, \Gamma \left(n-\delta+1 \right) {t}^{\delta}}{\delta\, \Gamma \left(n \right) }} \xi = -{\frac {q_{{2}}\Gamma \left(n-\beta+1 \right) {y}^{\beta}}{\beta\, \Gamma \left(n \right) }}+\theta_{{0}}$ .

3.2. Implementation of the generalized $(r+\frac{G'}{G})$ -expansion method

Now, we wish to address (3.2) with the help of the generalized $(r+\frac{G'}{G})$ -expansion method. Equation (2.8) yields the following closed-form solution for (3.2) when $\rho = 1$ is substituted in it:

$\begin{equation} U(\varphi) = \sum\limits_{l = -1}^{1}\tau_l \bigg(r+\frac{G'(\varphi)}{G(\varphi)}\bigg)^l. \end{equation}$

(3.34)

We obtain an expression based on the terms $\bigg(r+\frac{G'(\varphi)}{G(\varphi)}\bigg)$ by including (3.34) in (3.2) and combining terms with similar powers of $\bigg(r+\frac{G'(\varphi)}{G(\varphi)}\bigg)$ . By setting the coefficients to zero, this formula can be converted into a set of algebraic nonlinear equations. Following Maple's solution to this system, the following six cases of solutions are generated:

Case 2.1.

$\begin{equation} \begin{split} \tau_{{0}} = \tau_{{0}},\tau_{{1}} = 0,\tau_{{-1}} = -\tau_{{0}}\sqrt { \kappa},p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = 0,q_{{2}} = q_{{2}}, \omega = \kappa\,ap_{{1}}p_{{2}},r = \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {\kappa}. \end{split} \end{equation}$

(3.35)

Case 2.2.

$\begin{equation} \begin{split} &\tau_{{0}} = \tau_{{0}},\tau_{{1}} = 0,\tau_{{-1}} = -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{2\,r-\lambda}},p_{{1}} = p_{{1} },q_{{1}} = \frac{1}{4}\,{\frac { \left( 4\,{r}^{2}-4\,\lambda\, r+{\lambda}^{2} \right) ap_{{1}}p_{{2}}}{{\tau_{{0}}}^{2}b}},\\ &q_{{2}} = q _{{2}},\omega = -\frac{1}{4}\,{\frac { \left( 4\,aq_{{2}}{r}^{2}-4\,aq_{{2}} \lambda\,r-8\,{\tau_{{0}}}^{2}b\mu+2\,{\tau_{{0}}}^{2}b{\lambda}^{2}+a q_{{2}}{\lambda}^{2} \right) ap_{{1}}p_{{2}}}{{\tau_{{0}}}^{2}b}},p_{{2}} = p_{{2}},r = r. \end{split} \end{equation}$

(3.36)

Case 2.3.

$\begin{equation} \begin{split} &\tau_{{0}} = \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r,\tau_{{1}} = \tau_{{1}}, \tau_{{-1}} = 0,p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = {\frac {ap_{{1}} p_{{2}}}{b{\tau_{{1}}}^{2}}},\\ &q_{{2}} = q_{{2}},\omega = -\frac{1}{2}\,{\frac {ap_{ {1}}p_{{2}} \left( {\lambda}^{2}b{\tau_{{1}}}^{2}+2\,aq_{{2}}-4\,\mu\, b{\tau_{{1}}}^{2} \right) }{b{\tau_{{1}}}^{2}}},r = r. \end{split} \end{equation}$

(3.37)

Case 2.4.

$\begin{equation} \begin{split} &\tau_{{0}} = 0,\tau_{{1}} = \tau_{{1}},\tau_{{-1}} = -\mu\,\tau_{{1}}+\frac{1}{4}\, \tau_{{1}}{\lambda}^{2},p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = { \frac {ap_{{1}}p_{{2}}}{b{\tau_{{1}}}^{2}}},\\ &q_{{2}} = q_{{2}},\omega = -{ \frac {ap_{{1}}p_{{2}} \left( -8\,\mu\,b{\tau_{{1}}}^{2}+2\,{\lambda}^ {2}b{\tau_{{1}}}^{2}+aq_{{2}} \right) }{b{\tau_{{1}}}^{2}}},r = \frac{1}{2}\, \lambda. \end{split} \end{equation}$

(3.38)

Case 2.5.

$\begin{equation} \begin{split} &\tau_{{0}} = \tau_{{0}},\tau_{{1}} = 0,\tau_{{-1}} = -2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}},p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = -\frac{1}{4}\,{\frac {\kappa\,ap_{{1}}p_{{2}} }{{\tau_{{0}}}^{2}b}},\\ &q_{{2}} = q_{{2}},\omega = -\frac{1}{4}\,{\frac { \left( -8 \,{\tau_{{0}}}^{2}b\mu+2\,{\tau_{{0}}}^{2}b{\lambda}^{2}+4\,aq_{{2}} \mu-aq_{{2}}{\lambda}^{2} \right) ap_{{1}}p_{{2}}}{{\tau_{{0}}}^{2}b}} ,r = \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa}. \end{split} \end{equation}$

(3.39)

Case 2.6.

$\begin{equation} \begin{split} &\tau_{{0}} = 0,\tau_{{1}} = \tau_{{1}},\tau_{{-1}} = \mu\,\tau_{{1}}-\frac{1}{4}\, \tau_{{1}}{\lambda}^{2},p_{{1}} = p_{{1}},p_{{2}} = p_{{2}},q_{{1}} = { \frac {ap_{{1}}p_{{2}}}{b{\tau_{{1}}}^{2}}},\\ &q_{{2}} = q_{{2}},\omega = -{ \frac {ap_{{1}}p_{{2}} \left( 4\,\mu\,b{\tau_{{1}}}^{2}-{\lambda}^{2}b {\tau_{{1}}}^{2}+aq_{{2}} \right) }{b{\tau_{{1}}}^{2}}},r = \frac{1}{2}\,\lambda. \end{split} \end{equation}$

(3.40)

Considering case 2.1 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.1.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,1}(t,x,y) = & e^{i \xi}\bigg( -\tau_{{0}}\sqrt {\kappa} \left( \frac{1}{2}\,\sqrt {\kappa}+\frac{1}{2}\,{\frac { \sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }} \right) ^{-1}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.41)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,2}(t,x,y) = & e^{i \xi}\bigg( -{\frac {\tau_{{0}}\sqrt {\kappa}}{\frac{1}{2}\,\sqrt {\kappa}+\frac{1}{2}\,\sqrt { \kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.42)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,1,3}(t,x,y) = & e^{i \xi}\bigg( -{\frac {\tau_{{0}}\sqrt {\kappa}}{\frac{1}{2}\,\sqrt {\kappa}+\frac{1}{2}\,\sqrt { \kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.43)

Family 2.1.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,4}(t,x,y) = & e^{i \xi}\bigg( -\tau_{{0}}\sqrt {\kappa} \left( \frac{1}{2}\,\sqrt {\kappa}+\frac{1}{2}\,{\frac { \sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }} \right) ^{-1}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.44)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,5}(t,x,y) = & e^{i \xi}\bigg( -{\frac {\tau_{{0}}\sqrt {\kappa}}{\frac{1}{2}\,\sqrt {\kappa}+\frac{1}{2}\,\sqrt {- \kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.45)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,1,6}(t,x,y) = & e^{i \xi}\bigg( -{\frac {\tau_{{0}}\sqrt {\kappa}}{\frac{1}{2}\,\sqrt {\kappa}-\frac{1}{2}\,\sqrt {- \kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.46)

Family 2.1.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,7}(t,x,y) = & e^{i \xi}\bigg( -\tau_{{0}}\sqrt {\kappa} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {\kappa}+{ \frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}}\varphi }} \right) ^{-1}+\tau_{{0 }} \bigg). \end{split} \end{equation}$

(3.47)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,1,8}(t,x,y) = & e^{i \xi}\bigg( -{\frac {\tau_{{0}}\sqrt {\kappa}}{\frac{1}{2}\,\sqrt {\kappa}+{\varphi }^{-1} }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.48)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,1,9}(t,x,y) = & -\tau_{{0}} e^{i \xi}, \end{split} \end{equation}$

(3.49)

Considering case 2.2 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.2.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,1}(t,x,y) = & e^{i \xi}\bigg( \frac{ -2\,\tau_{{0}} ( {r}^{2}-\lambda\,r+\mu ) }{( 2\,r- \lambda ) \left( r+\frac{1}{2}\,{\frac {\sqrt {\kappa} \left( \nu_ {{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2} \,\sqrt {\kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) }+\tau_{{0 }} \bigg). \end{split} \end{equation}$

(3.50)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,2}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r+\frac{1}{2}\,\sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) }}+ \tau_{{0}} \bigg). \end{split} \end{equation}$

(3.51)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,2,3}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r+\frac{1}{2}\,\sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) }}+ \tau_{{0}} \bigg). \end{split} \end{equation}$

(3.52)

Family 2.2.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,4}(t,x,y) = & e^{i \xi}\bigg( \frac{ -2\,\tau_{{0}} ( {r}^{2}-\lambda\,r+\mu ) }{ ( 2\,r- \lambda ) \left( r+\frac{1}{2}\,{\frac {\sqrt {-\kappa} \left( - \nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}} \cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}} \cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}-\frac{1}{2}\,\lambda \right) }+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.53)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,5}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r+\frac{1}{2}\,\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) }}+ \tau_{{0}} \bigg). \end{split} \end{equation}$

(3.54)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,2,6}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r-\frac{1}{2}\,\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) }}+ \tau_{{0}} \bigg). \end{split} \end{equation}$

(3.55)

Family 2.2.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,7}(t,x,y) = & e^{i \xi}\bigg( -2\,\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) \left( 2\,r- \lambda \right) ^{-1} \left( r+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}} \varphi }} \right) ^{-1}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.56)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,2,8}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r+{\varphi }^{-1}-\frac{1}{2}\,\lambda \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.57)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,2,9}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\tau_{{0}} \left( {r}^{2}-\lambda\,r+\mu \right) }{ \left( 2\,r-\lambda \right) \left( r-\frac{1}{2}\,\lambda \right) }}+\tau_{{0 }} \bigg), \end{split} \end{equation}$

(3.58)

Considering case 2.3 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.3.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,1}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+\frac{1}{2}\,{\frac { \sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }} -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.59)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,2}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+\frac{1}{2}\,\sqrt { \kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.60)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,3,3}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+\frac{1}{2}\,\sqrt { \kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.61)

Family 2.3.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,4}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+\frac{1}{2}\,{\frac { \sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }} -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.62)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,5}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+\frac{1}{2}\,\sqrt {- \kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.63)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,3,6}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r-\frac{1}{2}\,\sqrt {- \kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.64)

Family 2.3.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,7}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+{\frac {\nu_{{2 }}}{\nu_{{1}}+\nu_{{2}}\varphi }} \right) \bigg). \end{split} \end{equation}$

(3.65)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,3,8}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r+{\varphi }^{-1} -\frac{1}{2}\,\lambda \right) \bigg). \end{split} \end{equation}$

(3.66)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,3,9}(t,x,y) = & e^{i \xi}\bigg( \frac{1}{2}\,\tau_{{1}}\lambda-\tau_{{1}}r+\tau_{{1}} \left( r-\frac{1}{2}\,\lambda \right) \bigg), \end{split} \end{equation}$

(3.67)

Considering case 2.4 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.4.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,1}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac { \left( -\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) \right) }}\\ &+\frac{1}{2}\,{\frac {\tau_{{1}}\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu _{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_ {{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }} \bigg). \end{split} \end{equation}$

(3.68)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,2}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {-\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt { \kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{ {1}}\sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.69)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,4,3}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {-\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt { \kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{ {1}}\sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.70)

Family 2.4.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,4}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac { \left( -\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) \right) }}\\ &+\frac{1}{2}\,{\frac {\tau_{{1}}\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) + \nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{ \nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}} \sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }} \bigg). \end{split} \end{equation}$

(3.71)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,5}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {-\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {- \kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{ {1}}\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.72)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,4,6}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {-\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {- \kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}-\frac{1}{2}\,\tau_{ {1}}\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.73)

Family 2.4.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,7}(t,x,y) = & e^{i \xi}\bigg( \left( -\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \frac{1}{2}\,\lambda+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}}\varphi }} \right) ^{-1}+\tau_{{1}} \left( \frac{1}{2}\,\lambda+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_ {{2}}\varphi }} \right) \bigg). \end{split} \end{equation}$

(3.74)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,4,8}(t,x,y) = & e^{i \xi}\bigg( \left( -\mu\,\tau_{{1}}+\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \varphi +{\frac {\tau_{{1}}}{\varphi }} \bigg), \end{split} \end{equation}$

(3.75)

Considering case 2.5 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.5.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,1}(t,x,y) = & e^{i \xi}\bigg( \frac{ \left( -2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}} \right) }{ \left( \frac{1}{2}\,\sqrt {-\kappa}+\frac{1}{2} \,{\frac {\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) \right) }{\nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }} \right) }+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.76)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,2}(t,x,y) = & e^{i \xi}\bigg( {\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\frac{1}{2}\,\sqrt {-\kappa}+\frac{1}{2}\,\sqrt {\kappa }\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.77)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,5,3}(t,x,y) = & e^{i \xi}\bigg( {\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\frac{1}{2}\,\sqrt {-\kappa}+\frac{1}{2}\,\sqrt {\kappa }\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.78)

Family 2.5.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,4}(t,x,y) = & e^{i \xi}\bigg( \frac{ \left( -2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}} \right) }{ \left( \frac{1}{2}\,\sqrt {-\kappa}+\frac{1}{2} \,{\frac {\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) \right) }{\nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }} \right) }+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.79)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,5}(t,x,y) = & e^{i \xi}\bigg( {\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\frac{1}{2}\,\sqrt {-\kappa}+\frac{1}{2}\,\sqrt {- \kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.80)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,5,6}(t,x,y) = & e^{i \xi}\bigg( {\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\frac{1}{2}\,\sqrt {-\kappa}-\frac{1}{2}\,\sqrt {- \kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.81)

Family 2.5.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,7}(t,x,y) = & e^{i \xi}\bigg( \left( -2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}} \right) \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa}+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}}\varphi }} \right) ^{- 1}+\tau_{{0}} \bigg). \end{split} \end{equation}$

(3.82)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,5,8}(t,x,y) = & e^{i \xi}\bigg( {\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\frac{1}{2}\,\sqrt {-\kappa}+{\varphi }^{-1}}}+ \tau_{{0}} \bigg). \end{split} \end{equation}$

(3.83)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,5,9}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {-2\,\tau_{{0}} \left( \frac{1}{2}\,\lambda+\frac{1}{2}\,\sqrt {-\kappa} \right) +\lambda\,\tau_{{0}}}{\sqrt {-\kappa}}}+\tau_{{0}} \bigg), \end{split} \end{equation}$

(3.84)

Considering case 2.6 and utilizing Eq (3.1), (3.34) and the corresponding general solution of Eq (2.10), we construct the subsequent plethora of optical soliton solutions for (1.1):

Family 2.6.1. When $\tau > 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,1}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac { \left( \mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \nu_{{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt { \kappa}\varphi \right) +\nu_{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa} \varphi \right) \right) }}\\ &+\frac{1}{2}\,{\frac {\tau_{{1}}\sqrt {\kappa} \left( \nu_{{1}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu _{{2}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \right) }{\nu_ {{1}}\cosh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) +\nu_{{2}}\sinh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }} \bigg). \end{split} \end{equation}$

(3.85)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,2}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {\mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {\kappa }\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{{1}} \sqrt {\kappa}\coth \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.86)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,6,3}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {\mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {\kappa }\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{{1}} \sqrt {\kappa}\tanh \left( \frac{1}{2}\,\sqrt {\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.87)

Family 2.6.2. When $\tau < 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,4}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac { \left( \mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {- \kappa}\varphi \right) +\nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa} \varphi \right) \right) }}\\ &+\frac{1}{2}\,{\frac {\tau_{{1}}\sqrt {-\kappa} \left( -\nu_{{1}}\sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) + \nu_{{2}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \right) }{ \nu_{{1}}\cos \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) +\nu_{{2}} \sin \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }} \bigg). \end{split} \end{equation}$

(3.88)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,5}(t,x,y) = & e^{i \xi}\bigg( 2\,{\frac {\mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {- \kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}+\frac{1}{2}\,\tau_{ {1}}\sqrt {-\kappa}\cot \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.89)

(ⅲ) When $\nu_1\neq0$ , $\nu_2 = 0$

$\begin{equation} \begin{split} u_{2,6,6}(t,x,y) = & e^{i \xi}\bigg( -2\,{\frac {\mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2}}{\sqrt {- \kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) }}-\frac{1}{2}\,\tau_{ {1}}\sqrt {-\kappa}\tan \left( \frac{1}{2}\,\sqrt {-\kappa}\varphi \right) \bigg). \end{split} \end{equation}$

(3.90)

Family 2.6.3. When $\tau = 0$ ,

(ⅰ) When $\nu_1\neq0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,7}(t,x,y) = & e^{i \xi}\bigg( \left( \mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \left( \frac{1}{2}\lambda+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{{2}}\varphi }} \right) ^ {-1}+\tau_{{1}} \left( \frac{1}{2}\,\lambda+{\frac {\nu_{{2}}}{\nu_{{1}}+\nu_{ {2}}\varphi }} \right) \bigg). \end{split} \end{equation}$

(3.91)

(ⅱ) When $\nu_1 = 0$ , $\nu_2\neq0$

$\begin{equation} \begin{split} u_{2,6,8}(t,x,y) = & e^{i \xi}\bigg( \left( \mu\,\tau_{{1}}-\frac{1}{4}\,\tau_{{1}}{\lambda}^{2} \right) \varphi + {\frac {\tau_{{1}}}{\varphi }} \bigg), \end{split} \end{equation}$

(3.92)

4. Discussion and graphs

We present graphic representations of several wave patterns observed in the (2+1)-dimensional gFKMNE under study in this section. In contour and 3D visuals, we found and visualized wave patterns using the extended $(\frac{G'}{G})$ -expansion method and generalized $(r+\frac{G'}{G})$ -expansion method. The depictions show that the created soliton solutions, often referred to as dark soliton lattices, are cyclically structured in optical media. Dark soliton formations are collections of dark solitaires arranged regularly inside a medium. They are frequently shaped like wave channels or optical fibers. Similar to the lattice of a crystal, these solitons are restricted to areas of decreased optical intensity within a larger field that retain their structure and amplitude while moving. Not only can dark soliton lattices be used to precisely control and manipulate optical waves, but also to process information and communications networks, provide insight into nonlinear optics phenomena, provide platforms for basic research on the behavior of wave propagation, and have potential applications in signal processing, optical communication, and sensing. Thus, dark soliton lattices offer a stimulating new topic for nonlinear optics research that will enable both basic and applied investigations.

Figure 1. The 3D and contour visuals of the periodic soliton solution

$u_{1,1,2}$ articulated in (3.9) are graphed for

$\lambda = 4,\mu = 3,n = 2,\alpha = 1,\beta = 1$ ,

$\delta = 1,\tau_{{-1}} = 5,p_{{1}} = 2 ,p_{{2}} = 1$ ,

$q_{{2}} = 5,a = 10,b = 3,\theta_{{0}} = 0,t = 0$ .

DownLoad: Full-Size Img PowerPoint

Figure 2. The 3D and contour visuals of the periodic soliton solution

$u_{1,1,6}$ articulated in (3.13) are graphed for

$\lambda = 1,\mu = 2,n = 2,\alpha = 1$ ,

$\beta = 1,\delta = 0.9,\tau_{{-1}} = 10,p_{{1 }} = 3,p_{{2}} = 4$ ,

$q_{{2}} = 1,a = 2,b = 4,\theta_{{0}} = 1,t = 10$ .

DownLoad: Full-Size Img PowerPoint

Figure 3. The 3D and contour visuals of the periodic soliton solution

$u_{1,1,8}$ articulated in (3.15) are graphed for

$\lambda = 4,\mu = 4,n = 2,\alpha = 0.7,\beta = 0.8,\delta = 0.9$ ,

$\tau_{{-1}} = 5, p_{{1}} = 1,p_{{2}} = 2$ ,

$q_{{2}} = 3,a = 5,b = 1,\theta_{{0}} = 2,t = 20$ .

DownLoad: Full-Size Img PowerPoint

Figure 4. The 3D and contour visuals of the periodic soliton solution

$u_{1,2,3}$ articulated in (3.19) are graphed for

$\lambda = 4,\mu = 1,n = 3,\alpha = 0.3,\beta = 0.5$ ,

$\delta = 0.2,\tau_{{1}} = 6,p _{{1}} = 3,p_{{2}} = 1$ ,

$q_{{2}} = 7,a = 10,b = 10,\theta_{{0}} = 1,t = 50$ .

DownLoad: Full-Size Img PowerPoint

Figure 5. The 3D and contour visuals of the periodic soliton solution

$u_{2,2,3}$ articulated in (3.52) are graphed for

$\lambda = 3,\mu = 1,n = 1,\alpha = 1,\beta = 1$ ,

$\delta = 1,\tau_{{0}} = 6,p_{{1}} = 10 ,p_{{2}} = 5$ ,

$q_{{2}} = 6,a = 2,b = 2,\theta_{{0}} = 0,t = 100,r = 1$ .

DownLoad: Full-Size Img PowerPoint

Figure 6. The 3D and contour visuals of the periodic soliton solution

$u_{2,2,8}$ articulated in (3.57) are graphed for

$\lambda = 6,\mu = 9,n = 2,\alpha = 1,\beta = 1,\delta = 0.5$ ,

$\tau_{{0}} = 1,p_{{1}} = 20,p_{{2}} = 1,q_{{2}} = 8$ ,

$a = 1,b = 4,\theta_{{0}} = 100,t = 30,r = 10$ .

DownLoad: Full-Size Img PowerPoint

Figure 7. The 3D and contour visuals of the periodic soliton solution

$u_{2,4,2}$ articulated in (3.69) are graphed for

$\lambda = 5,\mu = 0,n = 1,\alpha = 1,\beta = 0.9$ ,

$\delta = 0.5,\tau_{{1}} = 1,p_{{ 1}} = 5,p_{{2}} = 3$ ,

$q_{{2}} = 1,a = 2,b = 5,\theta_{{0}} = 0,t = 50$ .

DownLoad: Full-Size Img PowerPoint

Figure 8. The 3D and contour visuals of the periodic soliton solution

$u_{2,4,6}$ articulated in (3.73) are graphed for

$\lambda = 0,\mu = 1,n = 2,\alpha = 1,\beta = 1$ ,

$\delta = 1,\tau_{{1}} = 15,p_{{1}} = 2 ,p_{{2}} = 7$ ,

$q_{{2}} = 3,a = 5,b = 10,\theta_{{0}} = 1,t = 100$ .

DownLoad: Full-Size Img PowerPoint

5. Conclusions

In summary, this study derived optical soliton solutions for the (2+1)-dimensional gFKMNE, a nonlinear model that explains pulse transmission in communication structures and optical fibers. The two improved versions of the $(\frac{G'}{G})$ -expansion method were the extended $(\frac{G'}{G})$ -expansion method and the generalized $(r+\frac{G'}{G})$ -expansion method. These techniques relied on the model's wave translation into integer-order NODEs. By assuming a series-form solution, the strategic techniques further turned the resulting NODEs into a system of nonlinear algebraic equations. Using the Maple program, these equations were solved to produce the gFKMNE's optical soliton solutions. In comparison with the extended $(\frac{G'}{G})$ -expansion method, it was observed that the generalized $(r+\frac{G'}{G})$ -expansion method produced more families of optical soliton solutions. Furthermore, all of the results obtained by the extended $(\frac{G'}{G})$ -expansion method could be obtained from the results of the generalized $(r+\frac{G'}{G})$ -expansion method with $r = 0$ . As a result, the generalized $(r+\frac{G'}{G})$ -expansion method was found to be more effective and superior. Furthermore, using 3D and contour visuals, it was demonstrated that the generated soliton solutions are periodically structured in optical media, which are called dark soliton lattices. Such dark soliton lattices have applications in optical communications, optical signal processing, and nonlinear optics, among other areas. Moreover, the effectiveness and dependability of the methods used in this study show how widely relevant they are to nonlinear issues in a range of scientific fields. The soliton dynamics and their implications for the models studied have been greatly improved by the $(\frac{G'}{G})$ -expansion approaches; however, it is important to recognize that this technique has limitations, especially when the highest derivative is not uniformly balanced with the nonlinear term. Notwithstanding this shortcoming, the paper highlights the amount of unaddressed concerns regarding nonlinear behavior and soliton dynamics and provides fresh avenues for future research in the area.

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