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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 3 — Feb. 1, 1998
  • pp: 171–173

Generation of high-power blue light in periodically poled LiNbO3

Graeme W. Ross, Markus Pollnau, Peter G. R. Smith, W. Andrew Clarkson, Paul E. Britton, and David C. Hanna  »View Author Affiliations


Optics Letters, Vol. 23, Issue 3, pp. 171-173 (1998)
http://dx.doi.org/10.1364/OL.23.000171


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Abstract

We report the generation of 450-mW average blue (473-nm) power by frequency doubling of a diode-pumped 946-nm Nd:YAG laser. We achieved pulsed operation at a high repetition rate (~160kHz) by driving the relaxation oscillations of the laser. A 40% conversion efficiency to the second harmonic was obtained in a single-pass, extracavity, first-order, quasi-phase-matched process in which periodically poled lithium niobate (period 4.5µm , thickness 0.5mm , and length 15mm) at 140°C was used. The resulting high-power blue beam was circular in profile and nearly diffraction limited, indicating that photorefractive effects do not appear to limit device performance.

© 1998 Optical Society of America

OCIS Codes
(160.3730) Materials : Lithium niobate
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4160) Nonlinear optics : Multiharmonic generation
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4400) Nonlinear optics : Nonlinear optics, materials
(220.4000) Optical design and fabrication : Microstructure fabrication

Citation
Graeme W. Ross, Markus Pollnau, Peter G. R. Smith, W. Andrew Clarkson, Paul E. Britton, and David C. Hanna, "Generation of high-power blue light in periodically poled LiNbO3," Opt. Lett. 23, 171-173 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-3-171

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