Soliton generation from randomly modulated return-to-zero pulses

Stanislav Derevyanko, Jaroslaw E. Prilepsky

    Research output: Contribution to journalArticlepeer-review


    We consider return-to-zero (RZ) pulses with random phase modulation propagating in a nonlinear channel (modelled by the integrable nonlinear Schrödinger equation, NLSE). We suggest two different models for the phase fluctuations of the optical field: (i) Gaussian short-correlated fluctuations and (ii) generalized telegraph process. Using the rectangular-shaped pulse form we demonstrate that the presence of phase fluctuations of both types strongly influences the number of solitons generated in the channel. It is also shown that increasing the correlation time for the random phase fluctuations affects the coherent content of a pulse in a non-trivial way. The result obtained has potential consequences for all-optical processing and design of optical decision elements.
    Original languageEnglish
    Pages (from-to)5439–5443
    Number of pages5
    JournalOptics Communications
    Issue number21
    Early online date24 Aug 2008
    Publication statusPublished - 1 Nov 2008


    • random phase modulation
    • nonlinear Schrödinger equation
    • optical solitons


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