Wavelength conversion element

Details Wavelength conversion element Wavelength conversion element

1994-04-20

1996-01-02

Healy, Brian

Optical waveguides

Having nonlinear property

385 4, 385 5, 385 8, 385 9, 385 11, 385 14, 385129, 385 45, 385 40, 385 41, 385 37, 359332, 372 21, G02B 610, H01S 310

Patent

active

054816360

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.=2 m.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.

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