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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 22785–22790

Compact second-harmonic generation laser module with 1 W optical output power at 490 nm

Christian Fiebig, Alexander Sahm, Mirko Uebernickel, Gunnar Blume, Bernd Eppich, Katrin Paschke, and Götz Erbert  »View Author Affiliations

Optics Express, Vol. 17, Issue 25, pp. 22785-22790 (2009)

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We demonstrate continues-wave 1 W at 490 nm on a 2.5 cm3 micro-optical bench using single-path second-harmonic generation with a periodically poled MgO:LiNbO3 bulk crystal. The pump laser is a distributed Bragg reflector tapered diode laser having a single-frequency spectrum and a pump power of 9.5 W. Based on that 1 W blue light could be achieved resulting in an optical conversion efficiency of 11%. Furthermore, the module has an output power stability of better than 2% and the blue laser beam shows an nearly diffraction limited beam quality of M2σ = 1.2 in vertical and M2σ = 2 in lateral direction.

© 2009 OSA

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing
(140.3515) Lasers and laser optics : Lasers, frequency doubled
(240.3990) Optics at surfaces : Micro-optical devices

ToC Category:
Lasers and Laser Optics

Original Manuscript: September 14, 2009
Revised Manuscript: November 17, 2009
Manuscript Accepted: November 17, 2009
Published: November 30, 2009

Christian Fiebig, Alexander Sahm, Mirko Uebernickel, Gunnar Blume, Bernd Eppich, Katrin Paschke, and Götz Erbert, "Compact second-harmonic generation laser module with 1 W optical output power at 490 nm," Opt. Express 17, 22785-22790 (2009)

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  1. P. Adamiec, B. Sumpf, I. Rüdiger, J. Fricke, K.-H. Hasler, P. Ressel, H. Wenzel, M. Zorn, G. Erbert, and G. Tränkle, “Tapered lasers emitting at 650 nm with 1 W output power with nearly diffraction-limited beam quality,” Opt. Lett. 34(16), 2456–2458 (2009). [CrossRef] [PubMed]
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