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Title: Effect of group V/III flux ratio on the reliability of GaAs/Al/sub 0. 3/Ga/sub 0. 7/As laser diodes prepared by molecular beam epitaxy

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.99484· OSTI ID:5525510

The effect of group V/III flux ratio ..gamma.. on the reliability of GaAs/Al/sub 0.3/Ga/sub 0.7/As double-heterostructure lasers grown by molecular beam epitaxy at 720 /sup 0/C has been studied. The threshold current does not change with ..gamma... By contrast, the degradation rate strongly depends on ..gamma.. and it takes a minimum at ..gamma..approx.3 where the photoluminescence intensity of the Al/sub 0.3/Ga/sub 0.7/As cladding layer is maximum. In the case of ..gamma..approx.3, the degradation rate is lower than that of lasers grown by liquid phase epitaxy.

Research Organization:
Central Research Laboratories, Sharp Corporation, Tenri, Nara 632, Japan
OSTI ID:
5525510
Journal Information:
Appl. Phys. Lett.; (United States), Vol. 52:4
Country of Publication:
United States
Language:
English