Wavelength conversion element

Details Wavelength conversion element Wavelength conversion element

1992-04-30

1994-07-26

Gonzalez, Frank

Optical waveguides

Having nonlinear property

385 4, 385 5, 385 8, 385 9, 385 11, 385 14, 385129, 359332, 372 21, G02B 610, H01S 310

Patent

active

053332318

ABSTRACT:
A wavelength conversion element includes a substrate made of LiTaO.sub.3 of non-linear medium, a three-dimensional waveguide formed in the substrate and a second harmonic generation portion for defining a change in refractive index in the waveguide with a period .LAMBDA. and generating a second harmonic of a fundamental wave introduced into the wave guide, where .LAMBDA.=2m.pi./{.beta.(2.omega.)-2.beta.(.omega.)}, m is a natural number, .omega. is a frequency of fundamental harmonic, .beta.(.omega.) is a propagation constant of the fundamental wave, and .beta.(2.omega.) is a propagation constant of second harmonic.

REFERENCES:
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patent: 4896930 (1990-01-01), Tsuchitani et al.
patent: 4907850 (1990-03-01), Araki et al.
patent: 5005933 (1991-04-01), Shimuzu
patent: 5036220 (1991-07-01), Byer et al.
patent: 5052770 (1991-10-01), Papuchon
patent: 5112532 (1992-05-01), Ninomiya et al.
patent: 5133027 (1992-07-01), Funazaki et al.
patent: 5157754 (1992-10-01), Bierlein et al.

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