Curved optical waveguide and optical device

Details Curved optical waveguide and optical device Curved optical waveguide and optical device

2005-01-20

2009-02-24

Connelly Cushwa, Michelle R (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S024000, C385S045000, C385S048000

Reexamination Certificate

active

07496254

ABSTRACT:
A curved optical waveguide comprising a core and a clad, characterized in that: the core shape of the curved optical waveguide has no reversal of a curvature on a halfway; and curvatures at both ends of the curved optical waveguide gradually approach zero. A curved optical waveguide comprising a core and a clad, characterized in that: the core shape of the curved optical waveguide has no reversal of a curvature on a halfway; a curvature at one end of the curved optical waveguide gradually approaches zero; and a radius of curvature at other end is finite. An optical waveguide comprising such a curved optical waveguide and an optical waveguide having a different core shape optically connected with the former, and an optical device using such a curved optical waveguide.

REFERENCES:
patent: 5222167 (1993-06-01), Jean et al.
patent: 2003/0228107 (2003-12-01), Howerton et al.
patent: 2005/0089295 (2005-04-01), Guo et al.
patent: 2007/0036501 (2007-02-01), Miyadera et al.
patent: 05-196826 (1993-08-01), None
patent: 05-203453 (1993-08-01), None
patent: 07-159635 (1995-06-01), None
patent: 11-295538 (1999-10-01), None
patent: 2004-302143 (2004-10-01), None
Nobuo Miyadera et al., “Hikari Splitter-yo Polymer Hikaridoharo Kiban no Kaihatsu” Hitachi Kasei Technical Report, 2004, 07 No. 43, pp. 29-34.

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