Reduction of semiconductor laser amplifier induced distortion and crosstalk for WDM systems using light injection

Abstract

Semiconductor laser amplifiers muse both distortion and crosstalk in WDM systems due to gain saturation. A method using Light injection is experimentally demonstrated to reduce distortion and crosstalk, In a two-channel experiment with a data rate of 2.5 Gbit/s, it is found that light injection can eliminate the BER floor due to distortion and crosstalk.