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Proceedings Paper

Multiwatt long wavelength quantum cascade lasers based on high strain composition with 70% injection efficiency
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Paper Abstract

A strain-balanced, AlInAs/InGaAs/InP quantum cascade laser structure, designed for light emission near 9μm, was grown by molecular beam epitaxy. Laser devices were processed in buried heterostructure geometry. Maximum pulsed and continuous wave room temperature optical power of 4.5 and 2W and wallplug efficiency of 16% and 10%, respectively, were demonstrated for a 3mm by 10μm laser mounted epi-side down on an AlN/SiC composite submount. Pulsed laser characteristics were shown to be self-consistently described by a simple model based on rate equations using measured 70% injection efficiency for the upper laser level.

Paper Details

Date Published: 4 March 2013
PDF: 9 pages
Proc. SPIE 8640, Novel In-Plane Semiconductor Lasers XII, 864019 (4 March 2013); doi: 10.1117/12.2000423
Show Author Affiliations
Arkadiy Lyakh, Pranalytica, Inc. (United States)
Richard Maulini, Pranalytica, Inc. (United States)
Alexei G. Tsekoun, Pranalytica, Inc. (United States)
Rowel Go, Pranalytica, Inc. (United States)
C. Kumar N. Patel, Pranalytica, Inc. (United States)

Published in SPIE Proceedings Vol. 8640:
Novel In-Plane Semiconductor Lasers XII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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