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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 38, Iss. 6 — Feb. 20, 1999
  • pp: 972–975

Angle-tuned type II external-cavity frequency doubling without temperature stabilization

Yves Emery, Anett Fleischhauer, Thomas Walther, and Edward S. Fry  »View Author Affiliations


Applied Optics, Vol. 38, Issue 6, pp. 972-975 (1999)
http://dx.doi.org/10.1364/AO.38.000972


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Abstract

We report frequency doubling of a low-power cw diode laser at 1064 nm in an external ring cavity by use of an angle-tuned KTP type II crystal. We demonstrate a new setup that requires no temperature stabilization of the crystal. An intracavity λ/2 plate rotates the polarization of the fundamental after each cavity round trip by 90°; this provides the two eigenpolarizations of the crystal required for a type II nonlinear process. As a result, it is possible to maintain the resonance condition by use of a standard locking circuit.

© 1999 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing

History
Original Manuscript: July 27, 1998
Revised Manuscript: October 12, 1998
Published: February 20, 1999

Citation
Yves Emery, Anett Fleischhauer, Thomas Walther, and Edward S. Fry, "Angle-tuned type II external-cavity frequency doubling without temperature stabilization," Appl. Opt. 38, 972-975 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-6-972

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