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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 9 — Apr. 27, 2009
  • pp: 7159–7169

Temperature Dependence of a Diode-Pumped Cryogenic Er:YAG Laser

Nikolay Ter-Gabrielyan, Mark Dubinskii, G. Alex Newburgh, Arockiasamy Michael, and Larry D. Merkle  »View Author Affiliations

Optics Express, Vol. 17, Issue 9, pp. 7159-7169 (2009)

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We report the laser performance of resonantly diode-pumped Er:YAG from liquid nitrogen temperature to above room temperature. Relative to incident pump power, the best performance was observed at approximately 160 K. Spectroscopy and modeling show that this is due primarily to the changing efficiency of diode pump absorption as the absorption lines broaden with temperature. However, the physics of the Er:YAG system indicates that even with arbitrarily narrow pump linewidth the most efficient laser performance should occur at a temperature somewhat above 77 K. The causes of the temperature dependence are at least qualitatively understood.

© 2009 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3500) Lasers and laser optics : Lasers, erbium
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: February 4, 2009
Revised Manuscript: March 26, 2009
Manuscript Accepted: April 3, 2009
Published: April 15, 2009

Nikolay Ter-Gabrielyan, Mark Dubinskii, G. A. Newburgh, Arockiasamy Michael, and Larry D. Merkle, "Temperature Dependence of a Diode-Pumped Cryogenic Er:YAG Laser," Opt. Express 17, 7159-7169 (2009)

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