Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2005-09-20
2005-09-20
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S003000, C385S040000, C385S050000, C385S014000, C385S024000
Reexamination Certificate
active
06947642
ABSTRACT:
An optical waveguide device expands the operable frequency range toward the higher frequency side. The device includes a single-mode optical resonator waveguide serving as an optical ring resonator, a single-mode optical input/output waveguide located close to the resonator waveguide in an area, and a Mach-Zehnder interferometer formed in such a way as to include a part of the resonator waveguide as its first optical waveguide arm and a part of the input/output waveguide as its second optical waveguide arm in the area. The interferometer has a first optical coupler for optically coupling the first and second waveguide arms with an input-side part of the input/output waveguide and a remaining part of the resonator waveguide due to multiple-mode optical interference, and a second optical coupler for optically coupling the first and second waveguide arms with an output-side part of the input/output waveguide and the remaining part of the resonator waveguide due to multiple-mode optical interference.
REFERENCES:
patent: 6084992 (2000-07-01), Weber et al.
patent: 6259848 (2001-07-01), Bagley et al.
patent: 6289151 (2001-09-01), Kazarinov et al.
patent: 6389203 (2002-05-01), Jordan et al.
patent: 6766083 (2004-07-01), Bona et al.
patent: 6788838 (2004-09-01), Ho
patent: 2003/0048989 (2003-03-01), Kashihara et al.
patent: 2003/0202743 (2003-10-01), Shibata
patent: 1 024 378 (2000-08-01), None
patent: 1 158 326 (2001-11-01), None
Madsen, C.K., et al., “Optical All-Pass Filters for Phase Response Design with Applications for Dispersion Compensation”, IEEE Photonics Technology Letters (1998), vol. 10, No. 7, pp. 996.
“Tunable Ring Resonator Dispersion Compensators Realized in High-Refractive-Index Contrast SiON Technology”, F. Horst, et al., ECOC (2000).
“Compact Integrated Tunable Chromatic Dispersion Compensator with a 4000 ps
m Tuning Range”, C.K. Madsen, OFC (2001).
“Optical Multi-Mode Interference Devices Based on Self-Imaging: Principles and Applications”, Lucas B. Soldano, et al., pp. 615-627, IEEE (1995).
NEC Corporation
Rojas Omar
Scully Scott Murphy & Presser
Ullah Akm Enayet
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