Improving the performance of a multiwavelength continuous-wave optical source based on supercontinuum by suppressing degenerate four-wave mixing

The influence of degenerate four-wave mixing (FWM) on the performance of the multiwavelength continuous-wave (CW) optical source based on supercontinuum has been theoretically studied. By suppressing degenerate FWM, a 135-channel supercontinuum CW optical source with 25-GHz spacing for 10-Gbit/s DWDM systems is experimentally demonstrated. Confirmation is provided with the generation of CW channel with crosstalk of other channels less than −28 dBm and the presentation of 10-Gbit/s eye-diagram and bit error rate performance.