Stimulated Raman crosstalk in optical transmission: effects of group velocity dispersion

Determining the maximum signal power in 10 Gbit/s WDM optical networks

“…To validate our results, we reproduce the results of the papers where the separate nonlinear models were published [6][7][8][9][10][11][12][13]. We also compare with the results obtained from VPI TMM/CM Version 7.5 simulation tool [14].…”

“…The noise variance and mean value variation coming from SRS, σ SRSi , and µ SRSi can be calculated as follows [10,11]:…”

“…Many excellent papers deal with modeling the impact of nonlinearities onto the signal quality. In [6,7] an analytical model of XPM is presented, in [8,9] the FWM, in [10,11] the SRS, and in [12,13] the SBS is introduced. In our paper, we present a complete model which includes the calculation of signal degradation due to XPM, FWM, and SRS, based on the previously mentioned publications.…”

Performance of an optical wideband WDM system considering stimulated Raman scattering, fiber attenuation and chromatic dispersion

“…In the literature, the experimentally found Raman gain profile has always been modelled as a triangular approximation up until 15 THz, beyond which the SRS effect is totally neglected (Cotter and Hill 1984;Chraplyvy 1983Chraplyvy , 1984Chraplyvy , 1990Christodulides and Jandcr 1996). However, the experimental results (Chraplyvy 1983(Chraplyvy , 1984(Chraplyvy , 1990 show that the SRS effect still persists well beyond 15 THz.…”

“…Several methods and techniques have been proposed in the literature to mitigate the SRS effect in optical fiber, which includes reduction of the wavelength spacing, decrease of optical power, use of specialized fiber and use of polarization scrambler (Cheung et al 2006;Sahu et al 2006;Kim et al 2007). However, in evaluating the performance degradation of an optical system due to the SRS effect, the experimentally found Raman gain characteristic is usually approximated by a triangular model (Cotter and Hill 1984;Chraplyvy 1984Chraplyvy , 1990Chraplyvy , 1983Wang et al 1998;Norimatsu and Yamamoto 2001;Bigo et al 1999). But this model yields inaccurate results if a wideband optical WDM system is considered, because the approximate model does not take into account the SRS effect beyond 15 THz bandwidth of the multichannel system.…”