Title :
Temperature-insensitive vertical-cavity surface-emitting laser array with a broad gain bandwidth
Author :
Kajita, M. ; Kurihara, K. ; Saito, H. ; Yoshikawa, T. ; Sugimoto, Y. ; Kasahara, K.
Author_Institution :
Opto-Electron. Res. Labs., NEC Corp., Ibaraki, Japan
fDate :
10/26/1995 12:00:00 AM
Abstract :
Temperature-insensitive vertical-cavity surface-emitting lasers (VCSELs) are promising devices for low-cost optical interconnection. The authors measured the injection current at a threshold and light output power of 1 mW at temperatures of 20, 50 and 80°C. At 80°C and 1 mW, the driving current for VCSELs with a broad gain bandwidth was reduced by ~20%, compared with that for conventional VCSELs. The deviation in driving current for VCSELs with a broad gain bandwidth was ~10%, which demonstrates that these VCSELs have uniform temperature characteristics in an 8×8 array
Keywords :
laser cavity resonators; optical interconnections; semiconductor laser arrays; surface emitting lasers; 1 mW; 20 to 80 C; 8×8 array; VCSEL; broad gain bandwidth; driving current; injection current; low-cost optical interconnection; surface-emitting laser array; temperature-insensitive laser array; uniform temperature characteristics; vertical-cavity SEL array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951335
