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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 2 — Jan. 17, 2011
  • pp: 1228–1235

16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers

André Müller, Deepak Vijayakumar, Ole Bjarlin Jensen, Karl-Heinz Hasler, Bernd Sumpf, Götz Erbert, Peter E. Andersen, and Paul Michael Petersen  »View Author Affiliations

Optics Express, Vol. 19, Issue 2, pp. 1228-1235 (2011)

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Up to 16 W output power has been obtained using spectral beam combining of two 1063 nm DBR-tapered diode lasers. Using a reflecting volume Bragg grating, a combining efficiency as high as 93.7% is achieved, resulting in a single beam with high spatial coherence. The result represents the highest output power achieved by spectral beam combining of two single element tapered diode lasers. Since spectral beam combining does not affect beam propagation parameters, M2-values of 1.8 (fast axis) and 3.3 (slow axis) match the M2- values of the laser with lowest spatial coherence. The principle of spectral beam combining used in our experiments can be expanded to combine more than two tapered diode lasers and hence it is expected that the output power may be increased even further in the future.

© 2011 OSA

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3298) Lasers and laser optics : Laser beam combining

ToC Category:
Lasers and Laser Optics

Original Manuscript: November 9, 2010
Revised Manuscript: December 22, 2010
Manuscript Accepted: January 3, 2011
Published: January 11, 2011

André Müller, Deepak Vijayakumar, Ole Bjarlin Jensen, Karl-Heinz Hasler, Bernd Sumpf, Götz Erbert, Peter E. Andersen, and Paul Michael Petersen, "16 W output power by high-efficient spectral beam combining of DBR-tapered diode lasers," Opt. Express 19, 1228-1235 (2011)

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