Optical wavelength conversion element, method of manufacturing t

Details Optical wavelength conversion element, method of manufacturing t Optical wavelength conversion element, method of manufacturing t

1996-12-04

1998-11-17

Lee, John D.

Optical: systems and elements

Optical frequency converter

Dielectric optical waveguide type

385122, G02F 135

Patent

active

058384863

ABSTRACT:
An optical wavelength conversion element includes an optical waveguide which is formed on a ferroelectric crystal substrate having a nonlinear optical effect and extends along one surface of the substrate, and domain reversals which are periodically formed in the optical waveguide and arranged in a direction. The orientation of the spontaneous polarization of the substrate is reversed in the domain reversals and the optical wavelength conversion element converts the wavelength of a fundamental wave travelling in the direction in which the domain reversals are arranged under the guidance of the optical waveguide. The orientation of the spontaneous polarization of the substrate is at an angle .theta. larger than 0.degree. and smaller than 90.degree. to the surface of the substrate in a plane normal to the direction in which the fundamental wave is guided.

REFERENCES:
patent: 5412502 (1995-05-01), Makio et al.
patent: 5415743 (1995-05-01), Harada
patent: 5506722 (1996-04-01), Mizuuchi et al.
patent: 5521750 (1996-05-01), Onoe et al.
"Interactions between Light Waves in a Nonlinear Dielectric"; Armstrong et al., Physical Review, vol. 127, No. 6, pp. 1918-1939 (1962) (Sep.).

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