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Cw surface-emitting grating-coupled GaAs/AlGaAs distributed feedback laser with very narrow beam divergence

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.97697· OSTI ID:6761315
Room-temperature cw operation of a GaAs/AlGaAs surface-emitting grating-coupled distributed feedback laser is reported. By using a transverse junction stripe scheme which provides a window structure for the surface-emitted light, cw surface emission having a very narrow beam divergence angle of 0.13/sup 0/ and an output power of more than 3 mW was observed.
Research Organization:
Central Research Laboratory, Mitsubishi Electric Corporation, 1-1, Tsukaguchi-Honmachi 8 Chome, Amagasaki, Hyogo 661, Japan
OSTI ID:
6761315
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 50:25; ISSN APPLA
Country of Publication:
United States
Language:
English

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