Optical communications – Multiplex – Optical switching
Reexamination Certificate
2007-02-13
2007-02-13
Payne, David C. (Department: 2613)
Optical communications
Multiplex
Optical switching
C398S051000, C398S054000, C398S079000, C398S084000
Reexamination Certificate
active
11095514
ABSTRACT:
A method for routing optical packets using multiple wavelength labels includes converting optical packet address signals to a plurality of optical pulses having different time-deviated wavelengths by executing a first operation to impart a wavelength dependent delay time with respect to a plurality of optical pulses having different wavelengths at a same time axis position. When the optical pulses are transmitted along a predetermined optical path having dispersion the dispersion is compensated for by executing a second operation on the optical pulses corresponding to a reverse process of the operation to impart a wavelength dependent delay time. This second operation results in the generation of a plurality of optical pulses having different wavelengths at a given point on the time axis. The pulse signals thus generated are used to determine the packet transmission route.
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Chujo Wataru
Harai Hiroaki
Kubota Fumito
Wada Naoya
National Institute of Information and Communications Technology
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Payne David C.
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