Arrangement of orthogonal polarized signals for suppressing fiber four-wave mixing in optical multichannel transmission systems

The arrangement of signal polarization states for suppressing fiber four-wave mixing (FWM) in optical multichannel transmission is described. Experiments show that light power generated through fiber FWM becomes 0 or 1/4 of the maximum value when signals are orthogonal. Based on the experimental results, power reduction of FWM light is evaluated for various arrangements of signal polarizations, and the optimum arrangements is shown to efficiently suppress fiber FWM in a multichannel system.<>