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Optics Letters

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  • Vol. 24, Iss. 12 — Jun. 15, 1999
  • pp: 823–825

High-power 390-nm laser source based on efficient frequency doubling of a tapered diode laser in an external resonant cavity

J. D. Bhawalkar, Y. Mao, H. Po, A. K. Goyal, P. Gavrilovic, Y. Conturie, and S. Singh  »View Author Affiliations


Optics Letters, Vol. 24, Issue 12, pp. 823-825 (1999)
http://dx.doi.org/10.1364/OL.24.000823


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Abstract

We frequency doubled the single-frequency beam from an external-cavity tapered laser diode operating at 780 nm in a resonant cavity containing a β -barium borate crystal to generate an output at 390 nm with high efficiency. Output powers as great as 233 mW were obtained, corresponding to an efficiency of 65%/W . The resonant-cavity design was a low-loss three-mirror configuration that provided compensation for astigmatism and coma. The laser diode frequency was locked to the doubling-cavity resonance by use of the Hänsch–Couillaud discrimination technique.

© 1999 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(140.3610) Lasers and laser optics : Lasers, ultraviolet
(140.4780) Lasers and laser optics : Optical resonators
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing

Citation
J. D. Bhawalkar, Y. Mao, H. Po, A. K. Goyal, P. Gavrilovic, Y. Conturie, and S. Singh, "High-power 390-nm laser source based on efficient frequency doubling of a tapered diode laser in an external resonant cavity," Opt. Lett. 24, 823-825 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-12-823


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