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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 6 — Feb. 20, 2010
  • pp: 1020–1024

Extending the narrow-bandwidth tunability of a thin disk Yb:YAG laser regenerative amplifier

Volker Wagner, Wolfgang Paa, Christoph Knappe, and Wolfgang Triebel  »View Author Affiliations

Applied Optics, Vol. 49, Issue 6, pp. 1020-1024 (2010)

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We investigate the characteristics of a thin disk laser system based on the master oscillator—power amplifier design. The amplifier emits parasitic laser oscillation (PL) when the wavelength of the tunable narrow-bandwidth seed pulse is detuned more than 4 nm from the gain maximum at 1030 nm . For suppression of this unwanted PL, a birefringent filter (Lyot filter) was inserted into the amplifier cavity in order to generate wavelength selective losses, especially at the gain maximum of the Yb:YAG crystal. It is shown that the tunability range of the laser system can be extended by a factor of 4, when a prop erly chosen Lyot filter is applied and its angle of rotation is adapted to the seed wavelength of the system.

© 2010 Optical Society of America

OCIS Codes
(140.3280) Lasers and laser optics : Laser amplifiers
(140.3580) Lasers and laser optics : Lasers, solid-state
(140.3600) Lasers and laser optics : Lasers, tunable
(140.3615) Lasers and laser optics : Lasers, ytterbium

ToC Category:
Lasers and Laser Optics

Original Manuscript: December 9, 2009
Manuscript Accepted: January 8, 2010
Published: February 18, 2010

Volker Wagner, Wolfgang Paa, Christoph Knappe, and Wolfgang Triebel, "Extending the narrow-bandwidth tunability of a thin disk Yb:YAG laser regenerative amplifier," Appl. Opt. 49, 1020-1024 (2010)

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