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Proceedings Paper

Reliability and degradation of oxide VCSELs due to reaction to atmospheric water vapor
Author(s): Alexandru Dafinca; Anthony R. Weidberg; Steven J. McMahon; Alexander A. Grillo; Philippe Farthouat; Michael Ziolkowski; Robert W. Herrick
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Paper Abstract

850nm oxide-aperture VCSELs are susceptible to premature failure if operated while exposed to atmospheric water vapor, and not protected by hermetic packaging. The ATLAS detector in CERN’s Large Hadron Collider (LHC) has had approximately 6000 channels of Parallel Optic VCSELs fielded under well-documented ambient conditions. Exact time-to-failure data has been collected on this large sample, providing for the first time actual failure data at use conditions. In addition, the same VCSELs were tested under a variety of accelerated conditions to allow us to construct a more accurate acceleration model. Failure analysis information will also be presented to show what we believe causes corrosion-related failure for such VCSELs.

Paper Details

Date Published: 13 March 2013
PDF: 10 pages
Proc. SPIE 8639, Vertical-Cavity Surface-Emitting Lasers XVII, 86390L (13 March 2013); doi: 10.1117/12.2001195
Show Author Affiliations
Alexandru Dafinca, Univ. of Oxford (United Kingdom)
Anthony R. Weidberg, Univ. of Oxford (United Kingdom)
Steven J. McMahon, Rutherford Appleton Lab. (United Kingdom)
Alexander A. Grillo, Univ. of California, Santa Cruz (United States)
Philippe Farthouat, CERN (Switzerland)
Michael Ziolkowski, Univ. Siegen (Germany)
Robert W. Herrick, C8 MediSensors, Inc. (United States)


Published in SPIE Proceedings Vol. 8639:
Vertical-Cavity Surface-Emitting Lasers XVII
Kent D. Choquette; James K. Guenter, Editor(s)

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