Solitonlike Stokes pulses in stimulated Raman scattering

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Abstract
An analytical solution for compressed solitonlike Stokes pulses created by Raman amplification is presented in the limit where the relative velocity between a wide pump pulse and the Stokes pulse is large and pump-depletion effects can be neglected. The concomitant deviations from the classical soliton shape are shown to be harmless for optical communication purposes. In the opposite limit, where pump depletion becomes important, cross-phase modulation between the pump and the Stokes pulse destroys the conditions for compression during Raman amplification.