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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 22 — Nov. 15, 2010
  • pp: 3742–3744

Continuous-wave single-frequency 532 nm laser source emitting 130 W into the fundamental transversal mode

Tobias Meier, Benno Willke, and Karsten Danzmann  »View Author Affiliations

Optics Letters, Vol. 35, Issue 22, pp. 3742-3744 (2010)

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The nonlinear effect of second-harmonic generation is an efficient way to realize high-power green laser sources. But when scaling up the harmonic power, many setups reported in the literature have been limited by conversion efficiency degradation or the fundamental laser power. Here we report on the generation of 134 W of cw laser light at a wavelength of 532 nm from a fundamental power of 149 W by second-harmonic generation in an external optical resonator comprising a lithium triborate crystal. The external conversion efficiency was 90%. The harmonic light consisted of a single spectral line. At least 97% of it was emitted into the fundamental transversal mode.

© 2010 Optical Society of America

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(140.7300) Lasers and laser optics : Visible lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(140.3515) Lasers and laser optics : Lasers, frequency doubled

ToC Category:
Lasers and Laser Optics

Original Manuscript: August 26, 2010
Manuscript Accepted: September 22, 2010
Published: November 3, 2010

Tobias Meier, Benno Willke, and Karsten Danzmann, "Continuous-wave single-frequency 532 nm laser source emitting 130 W into the fundamental transversal mode," Opt. Lett. 35, 3742-3744 (2010)

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