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Non-Lagrangian approach for coupled complex Ginzburg-Landau systems with higher order-dispersion

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  • Djob, Roger Bertin
  • Kenfact-Jiotsa, Aurelien
  • Govindarajan, A.

Abstract

It is known that after a particular distance of evolution in fiber lasers, two (input) asymmetric soliton like pulses emerge as two (output) symmetric pulses having same and constant energy. We report such a compensation technique in dispersion managed fiber lasers by means of a semi-analytical method known as collective variable approach (CVA) with including third-order dispersion (TOD). The minimum length of fiber laser, at which the output symmetric pulses are obtained from the input asymmetric ones, is calculated for each and every pulse parameters numerically by employing Runge-Kutta fourth order method. The impacts of intercore linear coupling, asymmetric nature of initial parameters and TOD on the evolution of pulse parameters and on the minimum length are also investigated. It is found that strong intercore linear coupling and asymmetric nature of input pulse parameters result in the reduction of fiber laser length. Also, the role of TOD tends to increase the width of the pulses as well as their energies. Besides, chaotic patterns and bifurcation points on the minimum length of the fiber owing to the impact of TOD are also reported in a nutshell.

Suggested Citation

  • Djob, Roger Bertin & Kenfact-Jiotsa, Aurelien & Govindarajan, A., 2020. "Non-Lagrangian approach for coupled complex Ginzburg-Landau systems with higher order-dispersion," Chaos, Solitons & Fractals, Elsevier, vol. 132(C).
    • Handle: RePEc:eee:chsofr:v:132:y:2020:i:c:s0960077919305351
    DOI: 10.1016/j.chaos.2019.109578
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    Cited by:

    1. Kudryashov, Nikolay A., 2020. "First integrals and general solution of the complex Ginzburg-Landau equation," Applied Mathematics and Computation, Elsevier, vol. 386(C).
    2. Xu, Guoan & Zhang, Yi & Li, Jibin, 2022. "Exact solitary wave and periodic-peakon solutions of the complex Ginzburg–Landau equation: Dynamical system approach," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 191(C), pages 157-167.
    3. Alrashed, Reyouf & Djob, Roger Bertin & Alshaery, A.A. & Alkhateeb, Sadah A. & Nuruddeen, R.I., 2022. "Collective variables approach to the vector-coupled system of Chen-Lee-Liu equation," Chaos, Solitons & Fractals, Elsevier, vol. 161(C).

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