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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Grover Swartzlander
  • Vol. 30, Iss. 6 — Jun. 1, 2013
  • pp: 1402–1409

Thermal limitations of volume Bragg gratings used in lasers for spectral control

Staffan Tjörnhammar, Björn Jacobsson, Valdas Pasiskevicius, and Fredrik Laurell  »View Author Affiliations


JOSA B, Vol. 30, Issue 6, pp. 1402-1409 (2013)
http://dx.doi.org/10.1364/JOSAB.30.001402


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Abstract

In this paper we present experiments and calculations of the property changes of a highly reflecting volume Bragg grating (VBG) when it is used as a laser cavity mirror. A small absorption of the reflected laser beam resulted in a laser output power roll-off, increased coupling through the VBG, and a change of the spectrum from a single to a double peak at high power. The simulations revealed that an inhomogeneous temperature distribution deformed the grating such that the diffraction efficiency was reduced and the light penetrated deeper into the VBG, which accelerated the deteriorating effects. We extrapolated the power limit found in our investigations for various beam radii and absorption coefficients.

© 2013 Optical Society of America

OCIS Codes
(050.7330) Diffraction and gratings : Volume gratings
(090.7330) Holography : Volume gratings
(140.6810) Lasers and laser optics : Thermal effects
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 18, 2013
Manuscript Accepted: March 30, 2013
Published: May 2, 2013

Citation
Staffan Tjörnhammar, Björn Jacobsson, Valdas Pasiskevicius, and Fredrik Laurell, "Thermal limitations of volume Bragg gratings used in lasers for spectral control," J. Opt. Soc. Am. B 30, 1402-1409 (2013)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-30-6-1402

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