Waveguide-embedded optical circuit and optical functional element used therein
AssigneeTDK Corporation
InventorsNaoki Hanashima, Tohru Kineri, Kenjiro Hata
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Abstract
The present invention is to provide an arrayed waveguide-embedded optical circuit with reduced loss at a groove and an optical functional element using for the arrayed waveguide-embedded optical circuit. The arrayed waveguide-embedded optical circuit according to the present invention comprises a waveguide, a groove formed across the waveguide and two or more spot-size transformer pairs whose members face each other across the groove.
Claims4
An optical functional element comprising:
- a magneto-optic functional element;
- first birefringent plates formed on one side of a surface of the magneto-optic functional element intersecting a light path for passing the light at predetermined intervals;
- and
- second birefringent plates formed on the other side of the surface of the magneto-optic functional element at predetermined intervals.
An optical functional element inserted into a groove of an arrayed waveguide-embedded optical circuit which comprises a waveguide, a groove formed across the waveguide and two or more embedded optical waveguide pairs whose members face each other across the groove, wherein the optical functional element comprises:
- a magneto-optic functional element;
- first and second birefringent plates being arranged on one surface of the magneto-optic functional element in a checker pattern;
- third and fourth birefringent plates being arranged on the other surface of the magneto-optic functional element in a checker pattern;
- and
- regions for passing the light propagating through the two or more pairs of the embedded optical waveguides.
An optical functional element inserted into a groove of an arrayed waveguide-embedded optical circuit which comprises a waveguide, a groove formed across the waveguide and two or more embedded optical waveguide pairs whose members face each other across the groove, wherein the optical functional element comprises:
- a magneto-optic functional element;
- first birefringent plates formed on one side of a surface of the magneto-optic functional element intersecting a light path for passing the light at predetermined intervals;
- and
- second birefringent plates formed on the other side of the surface of the magneto-optic functional element at predetermined intervals.
Dependencies are inferred from the claim text.