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Applied Optics

Applied Optics


  • Vol. 37, Iss. 15 — May. 20, 1998
  • pp: 3272–3275

Unstable Cr:LiSAF laser resonator with a variable reflectivity output coupler

Joseph F. Pinto and Leon Esterowitz  »View Author Affiliations

Applied Optics, Vol. 37, Issue 15, pp. 3272-3275 (1998)

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The performance of a flash-lamp-pumped Cr:LiSAF unstable laser resonator utilizing a fourth-order super-Gaussian variable reflectivity mirror as an output coupler is described. The super-Gaussian mirror results in a smooth, flattop transverse beam profile in the near field that is advantageous for nonlinear frequency-conversion applications. Long-pulse and Q-switched operation of the Cr:LiSAF unstable laser resonator are described and compared with stable resonator operation. We obtained tunable ultraviolet radiation extending from 267 to 290 nm by frequency mixing the Q-switched Cr:LiSAF laser output with lithium triborate and β-barium borate nonlinear crystals.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics

Original Manuscript: August 21, 1997
Revised Manuscript: February 5, 1998
Published: May 20, 1998

Joseph F. Pinto and Leon Esterowitz, "Unstable Cr:LiSAF laser resonator with a variable reflectivity output coupler," Appl. Opt. 37, 3272-3275 (1998)

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