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Reliability of strain-balanced Ga0.331In0.669As/Al0.659In0.341As/InP quantum-cascade lasers under continuous-wave room-temperature operation

Appl. Phys. Lett. 88, 261106 (2006); doi:10.1063/1.2217144

Published 27 June 2006

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A. Evans and M. Razeghi
Center for Quantum Devices, Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208
The reliability of high power strain-balanced Ga0.331In0.669As/Al0.659In0.341As/InP intersubband quantum cascade lasers (QCLs) emitting at a wavelength of 4.6  µm has been studied. Constant current aging is reported for two randomly selected high-reflectivity-coated QCLs with an output power over 100  mW. QCLs are tested under continuous-wave operation at a heat sink temperature of 298  K(25  °C) corresponding to an internal temperature of 378  K (105  °C). Over 4000  h of continuous testing is reported without any decrease in output power. ©2006 American Institute of Physics
History: Received 31 January 2006; accepted 11 May 2006; published 27 June 2006
Permalink: http://link.aip.org/link/?APPLAB/88/261106/1
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KEYWORDS and PACS

Keywords
PACS
  • 42.55.Px
    Semiconductor lasers; laser diodes
  • 42.60.By
    Design of specific laser systems
  • YEAR: 2006

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ISSN:
0003-6951 (print)   1077-3118 (online)
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