Title :
High power, high-efficiency quasi-CW two-dimensional laser diode arrays
Author :
Harnagel, G.L. ; Ahrabi, M. ; Browder, G.S., Jr. ; Worland, D.P. ; Endriz, J.G. ; Scifres, D.R.
Author_Institution :
Spectra Diode Labs., San Jose, CA, USA
Abstract :
Optical output power densities of 2000 W/cm2 have been obtained from 0.4 cm2 and 0.2 cm2 stacked AlGaAs laser arrays with electrical-to-optical conversion efficiencies of 43% for pulse widths of 200 mu s. Arrays were assembled to facilitate back-cooling, and a five-bar stack was operated at 8% duty cycle with an average output power of 24 W.
Keywords :
III-V semiconductors; aluminium compounds; gallium arsenide; semiconductor junction lasers; 200 mus; 24 W; 43 percent; back-cooling; duty cycle; electrical-to-optical conversion efficiencies; five-bar stack; high-efficiency; output power; pulse widths; semiconductors; stacked AlGaAs laser arrays; two-dimensional laser diode arrays;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910035
