[1] Deutsche Telekom AG, Technol Zentrum, D-64307 Darmstadt, Germany
来源:
1998 INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED MATERIALS - CONFERENCE PROCEEDINGS
|
1998年
关键词:
D O I:
10.1109/ICIPRM.1998.712476
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Buried index-coupled and gain-coupled distributed feedback (DFB) lasers (lambda=1.55 mu m) and laser arrays with wavelength spacing between channels of 1.6 nm and 3.2 nm have been realized and investigated on different strain-compensated InGaAsP/InGaAsP MQW structures, which are grown on InP bq; MOVPE with constant As/P ratio under N-2 as carrier gas for the first time. The grown structures exhibit an extremely good wavelength homogeneity ( sigma = 0.75 nm ). The lowest threshold current of 2.3 mA at 20 degrees C has been obtained for uncoated index-coupled DFB lasers. More than 40 mW CW and 70 mW pulsed output power are achieved at an injection current of 200 mA from one facet of a DFB laser with AR coating.