Continuous wave operation of a surface-emitting AlGaAs/GaAs multiquantum well distributed Bragg reflector laser

Journal Article · Mon Jun 15 04:00:00 EDT 1987 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.97721· OSTI ID:6537927

Kojima, K; Noda, S; Mitsunaga, K; Kyuma, K; Hamanaka, K

The first cw operation of an AlGaAs/GaAs distributed Bragg reflector laser was achieved at room temperature with a threshold current as low as 38 mA. Surface emission exceeding 4 mW was obtained with an external differential quantum efficiency of 9% and a beam divergence of 0.17/sup 0/ x 10/sup 0/. A two-dimensional laser array with 3 x 4 gratings was also fabricated and an output power exceeding 500 mW was obtained under pulsed condition.

• Research Organization: Central Research Laboratory, Mitsubishi Electric Corporation, 1-1 Tsukaguchi-honmachi 8-chome, Amagasaki, Hyogo 661, Japan
• OSTI ID: 6537927
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 50:24; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
BRAGG REFLECTION
DATA
EFFICIENCY
EXPERIMENTAL DATA
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INFORMATION
LASERS
NUMERICAL DATA
OPERATION
PERFORMANCE
PNICTIDES
POWER
POWER RANGE MILLI W
QUANTUM EFFICIENCY
REFLECTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS