Arrayed waveguide grating with increased uniformity of a...

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

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C385S031000, C385S046000

Reexamination Certificate

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11231094

ABSTRACT:
An arrayed waveguide grating (AWG) device comprising a substrate having a first array of waveguides optically coupled between first and second slab couplers and a second array of input-output waveguides optically coupled at first ends thereof to an input/output side of the second slab-coupler. The input/output waveguide are tapered at first end portions thereof so as to increase in width towards the second slap coupler, and the width (W) of the first ends of the input/output waveguides varies across the second array in a manner so as to increase uniformity of at least on performance parameter, for example adjacent crosstalk (AXT). In the described embodiment, the width (W) of the tapered waveguide ends increases from one side to the array of input/output waveguides to the other, so as to keep the separation(s) between the input/output waveguides.

REFERENCES:
patent: 5625723 (1997-04-01), Dragone et al.
patent: 5852505 (1998-12-01), Li
patent: 5889906 (1999-03-01), Chen
patent: 5926298 (1999-07-01), Li
patent: 5926587 (1999-07-01), Chen et al.
patent: 5930419 (1999-07-01), Marcel
patent: 6058233 (2000-05-01), Dragone
patent: 6118909 (2000-09-01), Chen et al.
patent: 6188818 (2001-02-01), Han et al.
patent: 6205273 (2001-03-01), Chen
patent: 6463197 (2002-10-01), Dragone
patent: 6735363 (2004-05-01), McGreer et al.
patent: 6836146 (2004-12-01), Zimlich
patent: 6836176 (2004-12-01), Zeng et al.
patent: 0 528 652 (1993-02-01), None
patent: 07 33447 (1995-12-01), None
patent: 08 201737 (1996-08-01), None
Patent Abstracts of Japan, vol. 1996, No. 12, Dec. 26, 1996 corresponding to JP 08 201737 A (Nippon Telegr. & amp) dated Aug. 9, 1996.
Patent Abstracts of Japan, vol. 1996, vol. 1996, No. 04, Apr. 30, 1996 corresponding to JP 07 333447 A (Nippon Telegr. & Teleph. Corp.) dated Dec. 22, 1995.
K. Okamoto et al., ‘Fabrication of unequal channel spacing arrayed-waveguide grating multiplexer modules’, Electronics Letters, IEE Stevenage, GB, vol. 31, No. 17, Aug. 17, 1995, pp. 1464-1466, XP006003226.

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