Analog to digital converter systems and methods

Optical communications – Multiplex – Optical switching

Reexamination Certificate

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Details

C398S075000, C340S870210, C341S137000, C341S157000

Reexamination Certificate

active

07376349

ABSTRACT:
Systems and methods are disclosed herein to provide analog-to-digital converter techniques. For example, in accordance with an embodiment of the present invention, an analog-to-digital converter architecture is disclosed that utilizes optical techniques to convert an analog electrical signal to a digital electrical signal.

REFERENCES:
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patent: 6266173 (2001-07-01), Hayes
patent: 6456422 (2002-09-01), Hayes et al.
patent: 6462860 (2002-10-01), Ionov
patent: 6466703 (2002-10-01), Ionov
patent: 2003/0048971 (2003-03-01), Ionov
patent: 2005/0226624 (2005-10-01), Ionov et al.
“Nonlinear Fiber Optics,” Second Edition, by Govind P. Agrawal, The Institute of Optics, University of Rochester, New York, pp. 28-50, 60-75, and 89-111.
“Comparison of Interferometric All-Optical Switches for Demultiplexing Applications in High-Speed OTDM Systems,” Colja Schubert et al., Journal of Lightwave Technology, vol. 20, No. 4, Apr. 2002.
“160-Gb/s All Optical Demultiplexing Using a Gain-Transparent Ultrafast-Nonlinear Interferometer (GT-UNI),” by C. Schubert et al., IEEE Photonics Technology Letters, vol. 13, No. 5, May 2001.
“40-Gb/s Demultiplexing Using an Ultrafast Nonlinear Interferometer (UNI),” by N. S. Patel et al., IEEE Photonics Technology Letters, vol. 8, No. 12, Dec. 1996.
“Gain-Transparent SOA-Switch for High-Bitrate OTDM Add/Drop Multiplexing,” by S. Diez et al., IEEE Photonics Technology Letters, vol. 11, No. 1, Jan. 1999.

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