Second-harmonic generation from a first-order quasi-phase-matched GaAs/AlGaAs waveguide crystal
Optics Letters, Vol. 26, Issue 24, pp. 1984-1986 (2001)
http://dx.doi.org/10.1364/OL.26.001984
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Abstract
We demonstrate, for the first time to our knowledge, the generation of second-harmonic pulses by use of a novel methodology for achieving first-order quasi-phase matching in a semiconductor waveguide crystal. This methodology is based on a periodic modulation of the susceptibility coefficient along the direction of light-beam propagation in which advantage is taken of the fact that χ(2)GaAs>χ(2)AlxGa1-xAs . Efficient second-harmonic generation at 975 nm of a pump wavelength of 1950 nm has been demonstrated for a crystal with a nonuniform domain dimension (duty cycle, ~39/61).
© 2001 Optical Society of America
OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(190.7220) Nonlinear optics : Upconversion
Citation
E. U. Rafailov, P. Loza-Alvarez, C. T. A. Brown, W. Sibbett, R. M. De La Rue, P. Millar, D. A. Yanson, J. S. Roberts, and P. A. Houston, "Second-harmonic generation from a first-order quasi-phase-matched GaAs/AlGaAs waveguide crystal," Opt. Lett. 26, 1984-1986 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-24-1984
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