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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