Optical waveguide device

Details Optical waveguide device Optical waveguide device

2009-02-05

2010-10-19

Peng, Charlie (Department: 2883)

Optical waveguides

Directional optical modulation within an optical waveguide

Electro-optic

C385S003000, C385S029000, C385S131000

Reexamination Certificate

active

07817879

ABSTRACT:
An optical waveguide device including a dielectric substrate and a folded waveguide formed on the substrate, including a first waveguide and a second waveguide, one part of the first waveguide being connected to one end of the second waveguide at a first coupling portion, the other end of the second waveguide connected to another part of the first waveguide at a second coupling portion, the first waveguide being straight or curved with a radius of curvature larger than or equal to a first curvature radius, and the second waveguide being straight or curved with a radius of curvature smaller than the first curvature radius. An outer groove is formed on the substrate along an outer peripheral of the folded waveguide, an input-side inner groove is formed on the substrate near a first coupling portion, and an output-side inner groove is formed on the substrate near a second coupling portion.

REFERENCES:
patent: 6115520 (2000-09-01), Laskowski et al.
patent: 7177490 (2007-02-01), Sugiyama et al.
patent: 2004/0184755 (2004-09-01), Sugiyama et al.
patent: 2005/0196092 (2005-09-01), Enokihara et al.
patent: 2004-287093 (2004-10-01), None

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