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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 38, Iss. 10 — May. 15, 2013
  • pp: 1633–1635

High-power diode laser bars and shear strain

Daniel T. Cassidy, O. Rehioui, Chadwick K. Hall, L. Béchou, Y. Deshayes, A. Kohl, T. Fillardet, and Y. Ousten  »View Author Affiliations


Optics Letters, Vol. 38, Issue 10, pp. 1633-1635 (2013)
http://dx.doi.org/10.1364/OL.38.001633


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Abstract

The emitters at the edges of high-power laser bars tend to produce less power than emitters that are near the center of the bar. We suggest that shear strain, which owes to strain induced by bonding, creates through a photoelastic effect a weak birefringence that rotates the plane of polarization of the light. A rotation of the plane of polarization reduces the net gain for the lasing modes and hence leads to a lower output power for the emitters at the edges of the bars, where the shear strain is dominant.

© 2013 Optical Society of America

OCIS Codes
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(140.2010) Lasers and laser optics : Diode laser arrays
(140.5960) Lasers and laser optics : Semiconductor lasers
(260.1440) Physical optics : Birefringence

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 22, 2013
Manuscript Accepted: April 4, 2013
Published: May 8, 2013

Citation
Daniel T. Cassidy, O. Rehioui, Chadwick K. Hall, L. Béchou, Y. Deshayes, A. Kohl, T. Fillardet, and Y. Ousten, "High-power diode laser bars and shear strain," Opt. Lett. 38, 1633-1635 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-10-1633


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