High-power CW-DFB laser diode modules for CATV applications operating at 1550 nm

摘要

Investigation of the correlation between longitudinal photon density distribution and spectral linewidth re-broadening, in conjunction with carefully designed coupling optics, enable laser modules that simultaneously achieve very high fibre-coupled power of 175 mW and very narrow linewidth>1 MHz even at /spl sim/120 mW of output power to be successfully fabricated.