Optical circuit, quantum operation device, and method for manufacturing optical circuit
AssigneeFujitsu Limited
InventorsTetsuya MIYATAKE, Tetsuro ISHIGURO, Kenichi KAWAGUCHI
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Abstract
An optical circuit includes: a first optical waveguide that extends in a first direction and uses diamond as a material; a plurality of second optical waveguides each of which uses diamond as a material, includes a color center, is coupled to the first optical waveguide, and extends in a direction different from the first direction; and a third optical waveguide that includes a material having a refractive index lower than a refractive index of diamond and coupled to the first optical waveguide.
Claims16
An optical circuit comprising:
- a first optical waveguide that extends in a first direction and uses diamond as a material;
- a plurality of second optical waveguides each of which uses diamond as a material, includes a color center, is coupled to the first optical waveguide, and extends in a direction different from the first direction;
- and
- a third optical waveguide that includes a material having a refractive index lower than a refractive index of diamond, the third optical wave guide being coupled to the first optical waveguide.
A method for manufacturing an optical circuit, the method comprising:
- forming a plurality of color centers in a first member that uses diamond as a material by implanting impurities into the first member;
- and
- acquiring, from the first member, an optical circuit that includes a first optical waveguide that extends in a first direction and a plurality of second optical waveguides each of which includes at least one of the plurality of color centers, is coupled to the first optical waveguide, and extends in a direction different from the first direction.
A quantum operation device comprising:
- an optical circuit that includes a color center;
- a light source for excitation of the color center;
- and
- a photodetector that detects light emitted from the color center,
- wherein the optical circuit includes:
- a first optical waveguide that extends in a first direction and uses diamond as a material;
- a plurality of second optical waveguides each of which uses diamond as a material, includes a color center, is coupled to the first optical waveguide, and extends in a direction different from the first direction;
- and
- a third optical waveguide that includes a material having a refractive index lower than a refractive index of diamond, the third optical wave guide being coupled to the first optical waveguide.
Dependencies are inferred from the claim text.