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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 27, Iss. 1 — Jan. 1, 2010
  • pp: 38–44

Depolarization induced by pump edge effects in high average power laser rods

Yaakov Lumer, Inon Moshe, Steven Jackel, Zvi Horvitz, Avi Meir, Revital Feldman, and Yehoshua Shimony  »View Author Affiliations


JOSA B, Vol. 27, Issue 1, pp. 38-44 (2010)
http://dx.doi.org/10.1364/JOSAB.27.000038


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Abstract

Non-radially symmetric residual birefringence in laser rods due to pump edge effects is analyzed both theoretically and experimentally. For cubic crystals such as yttrium aluminum garnet (YAG), this depolarization has a unique sixfold symmetry that is closely connected to the crystal’s cubic symmetry. While this depolarization is small compared to that observed with linear or circular polarizations, it is measurable and important when using radial or azimuthal polarizations in rods generating heat powers in excess of 70 W/cm. A simple criterion was defined in order to help estimate the amount of depolarization in a high-power laser rod system.

© 2009 Optical Society of America

OCIS Codes
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.6810) Lasers and laser optics : Thermal effects
(260.1440) Physical optics : Birefringence

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 16, 2009
Revised Manuscript: October 18, 2009
Manuscript Accepted: October 28, 2009
Published: December 14, 2009

Citation
Yaakov Lumer, Inon Moshe, Steven Jackel, Zvi Horvitz, Avi Meir, Revital Feldman, and Yehoshua Shimony, "Depolarization induced by pump edge effects in high average power laser rods," J. Opt. Soc. Am. B 27, 38-44 (2010)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-27-1-38


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