Abstract

The influence of stimulated Raman scattering (SRS) taking into account the random modulation and the walk-off effect on wideband wavelength division multiplexing (WDM) transmission systems are studied theoretically. First, it is shown that power depletion due to SRS can be separated into average power loss and waveform distortion. The waveform distortion is evaluated for various types of pulse shapes and fibers, and simple equations for evaluating the waveform distortion due to SRS are derived. These equations can be easily applied for designing wideband WDM transmission systems from the viewpoint of the SRS waveform distortion. We also compare results obtained from our method with those from the split-step Fourier method, and confirm validity of our method. Our method should be useful in the design of wideband WDM transmission systems, in which SRS is expected to be a serious limitation.

[IEEE ]

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