Optical Solitons and Modulation Instability Analysis with Lakshmanan–Porsezian–Daniel Model Having Parabolic Law of Self-Phase Modulation

Kaltham K. Al-Kalbani, Khalil S. Al-Ghafri (), Edamana V. Krishnan and Anjan Biswas
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Kaltham K. Al-Kalbani: Department of Mathematics, Sultan Qaboos University, P.O. Box 36, Al-Khod, Muscat 123, Oman
Khalil S. Al-Ghafri: College of Applied Sciences, University of Technology and Applied Sciences, P.O. Box 14, Ibri 516, Oman
Edamana V. Krishnan: Department of Mathematics, Sultan Qaboos University, P.O. Box 36, Al-Khod, Muscat 123, Oman
Anjan Biswas: Department of Mathematics and Physics, Grambling State University, Grambling, LA 71245, USA

Mathematics, 2023, vol. 11, issue 11, 1-20

Abstract: This paper seeks to find optical soliton solutions for Lakshmanan–Porsezian–Daniel (LPD) model with the parabolic law of nonlinearity. The spatiotemporal dispersion is included to the model, as it can contribute to handling the problem of internet bottleneck. This study was performed analytically using the traveling wave hypothesis to reduce the model to an integrable form. Then, the resulting equation was handled with two approaches, namely, the auxiliary equation method and the Bernoulli subordinary differential equation (sub-ODE) method. With an intentional focus on hyperbolic function solutions, abundant optical soliton waves including W-shaped, bright, dark, kink-dark, singular, kink, and antikink solitons were derived with the existing conditions. Furthermore, the behaviors of some optical solitons are illustrated. The spatiotemporal dispersion was found to significantly affect the pulse propagation dynamics. Finally, the modulation instability (MI) of the LPD model is explained in detail along with the extraction of the expression of MI gain.

Keywords: Lakshmanan–Porsezian–Daniel model; optical solitons; parabolic law; modulation instability (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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