NUMERICAL DISCRIMINATION OF INTRACHANNEL CROSS-PHASE MODULATION AND INTRACHANNEL FOUR-WAVE MIXING AND THEIR RESPECTIVE EFFECT ON 40 GBIT/S TRANSMISSIONS
15 February 2006
We propose a numerical method to accurately discriminate the influence of the different intrachannel nonlinear effects occurring in 40 Gbit/s optical transmissions, following an analogy with methods used to discriminate WDM interchannel effects. In contrast to other studies showing the predominance of intrachannel cross-phase modulation when low-dispersion fibers are used, in our study intrachannel four-wave mixing is the most penalizing effect in all investigated cases.