Wide temperature range operation of 1.55 /spl mu/m current-blocking grating complex-coupled DFB laser

摘要

The authors demonstrate, for the first time, good quality transmission of a 2.488 Gbit/s signal by a 1.55 /spl mu/m complex-coupled DFB laser at 85/spl deg/C. The laser oscillates in a DFB mode with a side-mode suppression ratio of greater than 43 dB, the slope efficiency varies from 0.36 to 0.22 in the temperature range 2O-90/spl deg/C; 5 mW is obtained at 90/spl deg/C with a driving current of >50 mA.