Optical waveguide elements, optical wave length conversion elements, and process for producing optical waveguide elements
AssigneeMatsushita Electric Industrial Co., Ltd. and NGK Insulators, Ltd.
InventorsKiminori Mizuuchi, Kazuhisa Yamamoto, Tatsuo Kawaguchi, Takashi Yoshino, Minoru Imaeda, Kenji Aoki, Osamu Mitomi
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Abstract
An optical waveguide element is disclosed, which includes a three-dimensional optical waveguide of a bulky non-linear optical crystal, a substrate, and a joining layer made of an amorphous material through which the substrate is joined to the optical waveguide.
Claims45
An optical waveguide element comprising a three-dimensional optical waveguide of a bulky non-linear optical crystal, a substrate, and a joining layer made of an amorphous material through which the substrate is joined to the optical waveguide.
An optical waveguide element comprising a three-dimensional optical waveguide of a bulky non-linear optical crystal, and an underclad for the optical waveguide, wherein the three-dimensional waveguide is formed in such a thickness by mechanically working the non-linear optical crystal as permitting light to be confined, and the underclad comprises an amorphous material.
A process for producing an optical waveguide element, comprising the steps of joining an optical waveguide-forming material of a bulky non-linear optical crystal to a separate substrate via a joining layer of an amorphous material, and forming a three-dimensional optical waveguide by working the optical waveguide-forming material, wherein the joining layer has a refractive index smaller than that of the non-linear optical crystal.
A process for producing an optical waveguide element, comprising the steps of joining an optical waveguide-forming material of a bulky non-linear optical crystal to a separate substrate via a joining layer of an amorphous material, and forming a three-dimensional optical waveguide by working the optical waveguide-forming material, wherein the joining layer has a refractive index smaller than that of the non-linear optical crystal.
An optical wavelength conversion element comprising a three-dimensional optical waveguide of a slab-shaped non-linear optical crystal, and clad layers of an amorphous material on upper and lower surfaces of the optical waveguide.
Dependencies are inferred from the claim text.