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Digitale Medien

Two-dimensional array of high-power strained quantum well lasers with λ=0.95 μm (1989)

Bour, D. P. ; Stabile, P. ; Rosen, A. ; [weitere]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 54 (1989), S. 2637-2638

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Details

ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: An incoherent, two-dimensional array of high-power lasers operating at λ=0.95 μm is demonstrated. The laser structure consists of a single 70 A(ring) strained In0.2Ga0.8As quantum well active region with an AlGaAs graded-index separate confinement heterostructure, prepared by atmospheric pressure organometallic vapor phase epitaxy. The rack-and-stack array contains 536 oxide-stripe emitter elements in a 1.7 mm×1 cm area, producing approximately 200 Watts at a 60 A drive current. Under pulsed operation the external differential quantum efficiency is 40% while the power conversion efficiency reaches 16%. At high power, greater than 90% of the individual elements are lasing, with an overall spectral width Δλ∼5 mm.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.101020

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