S-shaped curved optical waveguide and optical device

Details S-shaped curved optical waveguide and optical device S-shaped curved optical waveguide and optical device

2006-10-19

2008-10-28

Font, Frank G (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling structure

C385S132000, C385S014000, C385S043000, C385S050000

Reexamination Certificate

active

07444050

ABSTRACT:
The present invention relates to a curved optical waveguide which is free of any axis-deviation structure in the middle of the waveguide and which has a sigmoidal core shape, wherein the curvature thereof at one end is zero and the curvature thereof at the other end is finite (>0) and the use of such a curved optical waveguide permits the reduction of optical loss at the connected portions to the lowest possible level even when it is applied to, for instance, an optical splitter or a directional coupler and the curved optical waveguide of the present invention can provide an optical waveguide which never requires the use of any offset.

REFERENCES:
patent: 5586209 (1996-12-01), Matsuura et al.
patent: 6501886 (2002-12-01), Rankin
patent: 04-213407 (1992-08-01), None
patent: 07-159635 (1995-06-01), None
patent: 2000-171652 (2000-06-01), None
patent: 2003-057470 (2003-02-01), None
patent: 2003-315584 (2003-11-01), None
patent: 2004-046032 (2004-02-01), None
patent: 2004-077757 (2004-03-01), None
G.A. Bogert, et al. “Low-Loss Y-Branch Power Divider”, Electronics Letters, vol. 25 No. 25, pp. 1712-1714, 1989.
Chin-Wei Hsu, et al., “Compact Y-Branch Power Splitter based Simplified Coherent Coupling”, IEEE, Photonic Technology Letters, vol. 15 No. 8, pp. 1103-1105, 2003.
Kokubun Y., Kouha-Kougaku, “Technology of Light Waves” Published by Kyoritsu Publishing Co., Ltd., p. 250.
Japanese Official Action for Application No. 2003-095168, dated Jul. 30, 2007.
Chinese Official Action for Application No. 2004800427548, dated Sep. 7, 2007.

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