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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 6 — Mar. 20, 2006
  • pp: 2191–2196

Self-compensating amplifier design for cw and Q-switched high-power Nd:YAG lasers

Michelle S. Roth, Valerio Romano, T. Feurer, and Thomas Graf  »View Author Affiliations

Optics Express, Vol. 14, Issue 6, pp. 2191-2196 (2006)

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We experimentally demonstrate a self-adaptive compensation of the pump power dependent thermal lens in an Nd:YAG laser through a thin layer of a medium with a negative temperature dependence of the refractive index. The layer is thermally coupled to the laser rod and leads to a strikingly improved beam quality over a large stability range. The scheme allows for a scaling to high powers as well as pulsed-mode operation.

© 2006 Optical Society of America

OCIS Codes
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 18, 2005
Revised Manuscript: January 26, 2006
Manuscript Accepted: March 2, 2006
Published: March 20, 2006

Michelle Roth, Valerio Romano, T. Feurer, and Thomas Graf, "Self-compensating amplifier design for cw and Q-switched high-power Nd:YAG lasers," Opt. Express 14, 2191-2196 (2006)

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