Generation of high-power blue light in periodically poled LiNbO3
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
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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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