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Title: Optically pumped 1. 55-. mu. m double heterostructure Ga/sub x/Al/sub y/In/sub 1-x/-yAs/Al/sub u/In/sub 1-u/As lasers grown by molecular beam epitaxy

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.93906· OSTI ID:6535165

We report the first successful realization of room-temperature laser action at a wavelength of 1.55 ..mu..m in a new double heterostructure in which the active layer of Ga/sub x/Al/sub y/In/sub 1-x/-yAs is confined between two cladding layers of Al/sub u/In/sub 1-u/As. The structure was grown on InP by molecular beam epitaxy, and was pumped optically by a Q-switched yttrium aluminum garnet laser. Peak output power of up to 5 W was obtained at an incident power corresponding to four times that required for threshold without catastrophic degradation. Temperature dependence of the threshold power can be characterized by P/sub th/approx.exp(T/T/sub 0/) with T/sub 0/ = 60 /sup 0/C for 20 /sup 0/C< or =T< or =100 /sup 0/C.

Research Organization:
Bell Laboratories, Murray Hill, New Jersey 07974
OSTI ID:
6535165
Journal Information:
Appl. Phys. Lett.; (United States), Vol. 42:3
Country of Publication:
United States
Language:
English