Abstract
We present a numerical and analytical investigation of the deformation of a modulated wave group in third-order nonlinear media. Numerical results show that an optical pulse that is initially bichromatic can deform substantially with large variations in amplitude and phase. For specific cases, the bi-chromatic pulse deforms into a train of temporal solitons. Based on the coupled phase-amplitude equation of Nonlinear Schrödinger (NLS), the initial deformation of the modulated wave-packet will be explained and an instability condition can be derived. Energy arguments are given that provide an alternative derivation of the instability condition.
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Suryanto, A., Van Groesen, E. & Hoekstra, H. Deformation of modulated wave groups in third-order nonlinear media. Optical and Quantum Electronics 33, 513–525 (2001). https://doi.org/10.1023/A:1010815505739
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DOI: https://doi.org/10.1023/A:1010815505739