MICROWAVE CIRCUIT-DESIGN FOR CHIRP OR INTENSITY FLUCTUATION SUPPRESSION IN MULTIELECTRODE DFB LASERS

Realizable microstrip circuits have been designed to provide the requi red modulation current characteristics to suppress the chirp or intens ity fluctuations occurring in a multielectrode distributed feedback la ser structure under intensity or frequency modulation schemes, respect ively, The designs have been performed using the combination of a comm ercial microwave circuit simulator and a time domain laser, model, It is shown that good chirp or intensity fluctuation suppression can be a chieved without significantly affecting the desired intensity or frequ ency modulation performance.