Wavelength conversion device

Details Wavelength conversion device Wavelength conversion device

1993-01-29

1994-06-21

Lee, John D.

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

385122, G02F 135

Patent

active

053232623

ABSTRACT:
A wavelength conversion device exhibiting an excellent wavelength conversion efficiency is provided by forming it in such a manner that an LiTaO.sub.3 substrate is subjected to a proton exchange treatment to form a proton-exchange layer before the proton-exchange layer is subjected to heat treatment to form a domain-inverted structure. Heat treatment is performed at a high temperature rising speed to prevent the thermal diffusion of the proton-exchange layer so that the expansion of the domain-inverted structure to be formed in the proton-exchange layer is restrained. As a result, a higher harmonic wave wavelength conversion device can be provided.

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