Frequency doubler and short wave laser source using the same and

Details Frequency doubler and short wave laser source using the same and Frequency doubler and short wave laser source using the same and

1994-08-23

1996-05-07

Lee, John D.

Optical waveguides

Having nonlinear property

359328, 359332, 372 22, H01S 3109

Patent

active

055154719

ABSTRACT:
A frequency doubler comprising periodic domain-inverted regions, in which a nonlinear degradation layer is formed on the surface of a waveguide, whereby the TM.sub.00 mode of the fundamental wave is converted into the TM.sub.10 mode of the high harmonic wave so as to reduce the effects of optical damage in order to stably output the TM.sub.10 mode of the high harmonic wave.

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Kazuhisa Yamamoto et al, "Milliwatt-order blue-light generation in a periodically domain-inverted LiTaO.sub.3 waveguide", Optics Letters, vol. 16, No. 15, Aug. 1, 1991, pp. 1156-1158.
Kiminori Mizuuchi, et al, "Fabrication of first-order periodically domain-inverted structure in LiTaO.sub.3 ", Applied Physics Letters, vol. 59, No. 13, Sep. 23, 1991, pp. 1538-1540.
T. Fujiwara, "A study on dielectric nonlinear optical waveguide", Inspec, Institution of Electrical Engineers, Hitchin, GB, abstract No. 3786165 & Record of Electrical and Communication Engineering Conversazione Tohoku University, May 1990, pp. 177-178.
J. Khurgin, "Improvement of frequency-conversion efficiency in waveguides with rotationally twinned layers", Optics Letters, vol. 13, No. 7, Jul. 1988, pp. 603-605.

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