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Threshold characteristics and extended wavelength operation of GaAs/1-x'//Al/sub y/Ga/sub 1-y/As/sub 1-x/Sb/sub x/ double-heterostructure lasers

Journal Article · · J. Appl. Phys.; (United States)
DOI:https://doi.org/10.1063/1.324234· OSTI ID:7319757
A normalized threshold current density J/sub th//d = 4.0 kA cm-/sup 2/ ..mu..-/sup 1/ has been determined for pulsed broad-area room-temperature GaAs/1-x'/Sb/sub x'/Al/sub y/Ga/sub 1-y/As/sub 1-x/Sb/sub x/ DH lasers of length 380 ..mu..m over a range of active-layer thicknesses d. Thresholds as low as 1.2 kA cm-/sup 2/ and differential efficiencies up to 35% have been obtained in the wavelength range 0.99-1.06 ..mu..m. cw operation of stripe-geometry lasers is also described.
Research Organization:
Bell Telephone Laboratories, Holmdel, New Jersey 07733
OSTI ID:
7319757
Journal Information:
J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:9; ISSN JAPIA
Country of Publication:
United States
Language:
English