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Low-current-threshold and high-lasing uniformity GaAs--Al/sub x/Ga/sub 1-x/As double-heterostructure lasers grown by molecular beam epitaxy

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90839· OSTI ID:6332187
GaAs--Al/sub x/Ga/sub 1-x/As double-heterostructure (DH) lasers that have current-threshold densities at least as low as similar-geometry DH lasers prepared by liquid-phase epitaxy have been prepared by molecular beam epitaxy for the first time. These broad-area lasers exhibited excellent stability and uniformity in lasing-filament distribution across the entire junction plane and throughout the entire current injection range up to catastrophic damage. The burn-off powers were typically about 14 W/mm. The differential quantum efficiencies were about 40%.
Research Organization:
Bell Laboratories, Murray Hill, New Jersey 07974
OSTI ID:
6332187
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 34:7; ISSN APPLA
Country of Publication:
United States
Language:
English