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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 16 — Aug. 2, 2010
  • pp: 17066–17074

Composite Yb:YAG/SiC-prism thin disk laser

G. A. Newburgh, A. Michael, and M. Dubinskii  »View Author Affiliations

Optics Express, Vol. 18, Issue 16, pp. 17066-17074 (2010)

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We report the first demonstration of a Yb:YAG thin disk laser wherein the gain medium is intracavity face-cooled through bonding to an optical quality SiC prism. Due to the particular design of the composite bonded Yb:YAG/SiC-prism gain element, the laser beam impinges on all refractive index interfaces inside the laser cavity at Brewster’s angles. The laser beam undergoes total internal reflection (TIR) at the bottom of the Yb(10%):YAG thin disk layer in a V-bounce cavity configuration. Through the use of TIR and Brewster’s angles, no optical coatings, either anti-reflective (AR) or highly reflective (HR), are required inside the laser cavity. In this first demonstration, the 936.5-nm diode pumped laser performed with ~38% slope efficiency at 12 W of quasi-CW (Q-CW) output power at 1030 nm with a beam quality measured at M2 = 1.5. This demonstration opens up a viable path toward novel thin disk laser designs with efficient double-sided room-temperature heatsinking via materials with the thermal conductivity of copper on both sides of the disk.

© 2010 OSA

OCIS Codes
(140.6810) Lasers and laser optics : Thermal effects

ToC Category:
Lasers and Laser Optics

Original Manuscript: June 29, 2010
Revised Manuscript: July 16, 2010
Manuscript Accepted: July 18, 2010
Published: July 27, 2010

G. A. Newburgh, A. Michael, and M. Dubinskii, "Composite Yb:YAG/SiC-prism thin disk laser," Opt. Express 18, 17066-17074 (2010)

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