Optical multi/demultiplexer

Details Optical multi/demultiplexer Optical multi/demultiplexer

2006-08-01

2006-08-01

Doan, Jennifer (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S015000

Reexamination Certificate

active

07085446

ABSTRACT:
An optical multi/demultiplexer having a desirable multiplexing-and-demultiplexing performance throughout the entire wavelength band for signal transmission, and an optical multiplexer whose multiplexing performance is less susceptible to the shift of the center wavelength and to the fluctuation of the center wavelength due to temperature change and whose optical circuit can be miniaturized. The optical multi/demultiplexer comprises a substrate and an optical circuit formed on the substrate. The optical circuit comprises a circuit having a wavelength dependency, which may be a Mach-Zehnder interferometer (MZI), and a Y-junction. In one aspect of the optical circuit, the Y-junction is connected to one end of each of the two optical waveguides included in an MZI. In another aspect of the optical circuit, the Y-junction is connected to one end of an optical waveguide included in an MZI and to one end of another optical waveguide, whether it is independent or belongs to another MZI.

REFERENCES:
patent: 5832155 (1998-11-01), Rasch et al.
patent: 6754411 (2004-06-01), Ahmadvand et al.
patent: 2003/0039461 (2003-02-01), How Kee Chun et al.
patent: 64-37507 (1989-02-01), None
patent: 2-126205 (1990-05-01), None
patent: 2-281239 (1990-11-01), None
patent: 9-243839 (1997-09-01), None
patent: 2001-249237 (2001-09-01), None
patent: 2001-318249 (2001-11-01), None
“Integrated four-channel Mach-Zehner multi/demultiplexer fabricated with fabricated with phosphorous doped SIO2 waveguides on Si”, Journal of lightwave technology, vol. 6, No. 6, p. 1011-1015 (1988).
“Flattened pass-band filter of double cascaded Mach-Zehnder Interferometers”, proceedings of the 1999 Electronics Society Conference of IEICE, p. 202, No. C-3-96.
“Two-Port Optical Wavelength Circuits Composed of Cascaded Mach-Zehnder Interferometers with Point-Symmetrical Configurations”, K. Jinguji, et al; Journal of Lightwave Technology, vol. 14, No. 10, Oct. 1996, p. 2301-2310.
Office Action in Corresponding Japanese Application No. JP 2002-117966 dated Nov. 1, 2005.

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