Stimulated Raman scattering crosstalk in massive WDM systems under the action of group velocity dispersion

On statistical effects on stimulated Raman cross-talk

“…, where = (k − 1)δ , and δ = 2πδf . Then, following [4,15], the power in channel k satisfies the boundary problem:…”

“…This assumption corresponds to a situation where the dispersion is high enough. (See [4,5]. See also [6] for interesting preliminary results.…”

“…Recently, the exact solution for SRS power exchange in WDM systems was found in the continuous wave (CW) regime [2]. It was shown that for an initially fully loaded WDM system, SRS can lead to an exponential-like power distribution among channels, which increases as a function of distance [3,4]. More recently, a model was proposed to explain the SRS power exchange in high-speed systems [4].…”

“…It was shown that for an initially fully loaded WDM system, SRS can lead to an exponential-like power distribution among channels, which increases as a function of distance [3,4]. More recently, a model was proposed to explain the SRS power exchange in high-speed systems [4]. This work was based on the fact that if channels have different group velocities, for high enough chromatic dispersion WDM channels are walking off from each other, and as a result every channel experiences only the average power of all its neighbours.…”

Raman Impairments in WDM Systems

“…The impact of pattern-dependent crosstalk induced by SRS (SRS-XT) on the performance of WDM transmission systems has been analyzed by many authors [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. The initial work concentrated on a small number of channels: in many cases only two.…”