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Very high CW output power and power conversion efficiency from current-confined CDH-LOC diode lasers

Very high CW output power and power conversion efficiency from current-confined CDH-LOC diode lasers

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Published

CDH-LOC lasers with tight current confinement to the lasing region provide CW output powers as high as 165 mW. The overall power conversion efficiency in CW operation reaches values of 35% (front-facet emitted power/overall input electrical power). Single-longitudinal-mode and fundamental-mode operations are achieved to 40 mW CW and 60 mW peak power (50% duty cycle), respectively. The threshold-current temperature coefficient T0 reaches values of 185 K.

Inspec keywords: gallium arsenide; aluminium compounds; laser cavity resonators; III-V semiconductors; semiconductor junction lasers; laser modes

Other keywords: CDH-LOC diode lasers; fundamental-mode operations; III-V semiconductors; tight current confinement; constricted-double-heterojunction large-optical cavity lasers; lasing region; threshold-current temperature coefficient; semiconductor junction lasers; CW output power; power conversion efficiency; single longitudinal mode

Subjects: Design of specific laser systems; Semiconductor lasers; Laser resonators and cavities; Lasing action in semiconductors; Laser resonators and cavities

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