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Coherent, monolithic two-dimensional strained InGaAs/AlGaAs quantum well laser arrays using grating surface emission

Journal Article · · Applied Physics Letters; (USA)
DOI:https://doi.org/10.1063/1.102256· OSTI ID:7170184
Two-dimensional coherent strained-layer InGaAs/AlGaAs quantum well laser arrays consisting of 100 (10{times}10) active elements have been fabricated and characterized. The central lobe of the far field has a full width at half power of 0.04{degree}{times}1{degree}. Observation of about 2 W peak power from either the substrate or the junction surface, with differential quantum efficiencies from each side of about 40%, is reported. The mode spectrum of the emitted power is contained in a {similar to}2 A wavelength interval at {similar to}2 W.
OSTI ID:
7170184
Journal Information:
Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 55:26; ISSN APPLA; ISSN 0003-6951
Country of Publication:
United States
Language:
English