Optical communications – Multiplex – Optical switching
Reexamination Certificate
2006-03-07
2006-03-07
Pascal, Leslie (Department: 2633)
Optical communications
Multiplex
Optical switching
C398S045000, C398S050000, C398S051000, C398S053000, C398S054000, C398S057000
Reexamination Certificate
active
07010226
ABSTRACT:
Packets conveying data are received by a router via input ports which impose on them optical carrier waves whose wavelengths correspond to the ports. Respective time-delays are applied to the packets and they are broadcast to spatial selectors that transmit them to spectral selectors. Amplifiers are distributed over the paths of the packets and the paths are organized in such a manner as to limit the number of semiconductor optical switches in the selectors and to minimize noise and optical crosstalk affecting the packets.
REFERENCES:
patent: 5365358 (1994-11-01), Stein
patent: 0 852 437 (1998-07-01), None
Maeno Y et al: “A 2.56-TB/S Multiwavelength and Scalable Switch-Fabric for Fast Packet-Switching Networks” IEEE Photonics Technology Letters, IEEE Inc. New York, US, vol. 10, No. 8, Aug. 1, 1998, pp. 1180-1182.
Danielsen S L et al: “Wavelength Conversion in Optical Packet Switching” Journal of Lightwave Technology, IEEE. New York, US, vol. 16, No. 12, Dec. 1998, pp. 2095-2108.
Ishida O et al: “Parallel-Optical-Interconnecting Multiwavelength Star Network (POIMS NET) For High-Capacity Switching” Electronics Letters, IEE Stevenage, GB, vol. 32, No. 19, Sep. 12, 1996, pp. 1804-1806.
Chiaroni Dominique
Jourdan Amaury
Le Sauze Nicolas
Zami Thierry
Alcatel
Pascal Leslie
Wang Quan-Zhen
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