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Proceedings Paper

Interband cascade lasers with high CW power and brightness
Author(s): M. Kim; C. S. Kim; W. W. Bewley; C. D. Merritt; C. L. Canedy; J. Abell; I. Vurgaftman; J. R. Meyer
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Paper Abstract

We report corrugated narrow-ridge interband cascade lasers emitting at λ ≈ 3.5 mm that have been fabricated using CH4/Cl2- and BCl3-based inductively coupled plasma reactive ion etch processes, with largely similar results from both types of etches. The highest brightness figure of merit was obtained at intermediate ridge width (28 mm), for which the maximum cw output power at T = 25 °C was 522 mW and the corresponding wallplug efficiency and beam quality factor were 10.3% and M2 = 3.1, respectively. The high output power may be attributed to a 7-stage design that employs thicker separate confinement layers for lower internal loss.

Paper Details

Date Published: 8 February 2015
PDF: 9 pages
Proc. SPIE 9370, Quantum Sensing and Nanophotonic Devices XII, 937029 (8 February 2015); doi: 10.1117/12.2081929
Show Author Affiliations
M. Kim, Sotera Defense Solutions, Inc. (United States)
C. S. Kim, U.S. Naval Research Lab. (United States)
W. W. Bewley, U.S. Naval Research Lab. (United States)
C. D. Merritt, U.S. Naval Research Lab. (United States)
C. L. Canedy, U.S. Naval Research Lab. (United States)
J. Abell, U.S. Naval Research Lab. (United States)
I. Vurgaftman, U.S. Naval Research Lab. (United States)
J. R. Meyer, U.S. Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 9370:
Quantum Sensing and Nanophotonic Devices XII
Manijeh Razeghi; Eric Tournié; Gail J. Brown, Editor(s)

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