Title :
Small astigmatism, high power and low noise 0.78 mu m self-aligned lasers
Author :
Komazaki, I. ; Uchida, M. ; Nido, M. ; Ishikawa, Seiichiro ; Endo, Kazuhiro ; Hara, Kentaro ; Yuasa, Takeshi
Author_Institution :
Opto-electronics Res. Labs., NEC Corp., Kawasaki, Japan
Abstract :
0.78 mu m self-aligned AlGaAs lasers have been developed for optical disc recording. The lasers have shown a small astigmatism (<3 mu m), low-noise characteristics (RIN<-126 dB/Hz at 3 mW) and stable 30 mW operation (over 1800 hours at 50 degrees C).
Keywords :
III-V semiconductors; aluminium compounds; electron device noise; gallium arsenide; laser transitions; semiconductor junction lasers; 0.78 micron; 30 mW; AlGaAs lasers; III-V semiconductors; fabrication; high power; low-noise characteristics; optical disc recording; self-aligned lasers; semiconductor lasers; small astigmatism;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19890205
