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Proceedings Paper

Improved performance of quantum cascade lasers via manufacturable quality epitaxial side down mounting process utilizing aluminum nitride heatsinks
Author(s): Alexei Tsekoun; Rowel Go; Michael Pushkarsky; Manijeh Razeghi; C. Kumar N. Patel
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Paper Abstract

We report substantially improved performance of high power quantum cascade lasers by utilizing epi-side down mounting that provides superior heat dissipation properties. We have obtained CW power output of 450 mW at 20°C from mid-IR QCLs. The improved thermal management achieved with epi-side down mounting has also permitted us to carry out initial lifetime tests on the mid-IR QCLs. No degradation of power output is seen even after over 300 hours of CW operation at 25°C with power output in excess of 300 mW. We believe these improvements should permit incorporation of mid-IR QCLs in reliable instrumentation.

Paper Details

Date Published: 10 February 2006
PDF: 8 pages
Proc. SPIE 6127, Quantum Sensing and Nanophotonic Devices III, 612702 (10 February 2006); doi: 10.1117/12.640089
Show Author Affiliations
Alexei Tsekoun, Pranalytica, Inc. (United States)
Rowel Go, Pranalytica, Inc. (United States)
Michael Pushkarsky, Pranalytica, Inc. (United States)
Manijeh Razeghi, Northwestern Univ. (United States)
C. Kumar N. Patel, Pranalytica, Inc. (United States)
Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 6127:
Quantum Sensing and Nanophotonic Devices III
Manijeh Razeghi; Gail J. Brown, Editor(s)

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