Impact of Stimulated Raman Scattering in High-Speed Long-Distance Transmission Lines

Abstract

We examine the effects of stimulated Raman scattering on ultra-short pulses propagating in optical fiber systems. In particular we demonstrate that the existing theories for the Raman-induced soliton self-frequency shift give consistent results only in a restricted domain of pulse width which excludes important practical applications to high-speed soliton transmission systems. We present a general theory for the soliton self-frequency shift (SSFS), which applies to any pulse whose spectral bandwidth lies within the third-order telecommunication window. We show that the disastrous impact of the SSFS in high-speed long-distance transmission lines can be suppressed by use of filters whose central frequency is appropriately up shifted with respect to the transmission frequency.KeywordsStimulate Raman ScatteringGroup Velocity DispersionPulse ParameterRaman GainIncoming PhotonThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.