Optical communications – Multiplex – Optical switching
Reexamination Certificate
2006-01-03
2006-01-03
Vanderpuye, Kenneth (Department: 2633)
Optical communications
Multiplex
Optical switching
C398S046000, C398S048000, C398S050000
Reexamination Certificate
active
06983108
ABSTRACT:
Optical signals inputted to input ports are split in half by 1×2 optical splitters respectively and the resulting signals are inputted to the input terminals of an optical matrix switch. The optical matrix switch switches between the routes of the individual optical signals and outputs the signal at any of the output ports. This enables the optical signal from the same input port to be outputted at two different output ports, which makes it possible to effect “bridge” at the time of protection switching.
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patent: 6344912 (2002-02-01), Hajjar et al.
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T. Miyazaki, et al., IEICE Trans. Electron, vol. E82-C, No. 2, pp. 274-282, “A Demonstration of an Optical Switch Circuit with “Bridge and Switch” Function in WDM Four-Fiber Ring Networks”, Feb. 1999.
R. Iraschko, et al., OFC'99 100C, pp. 154 TuK3-1 to 156 TuK3-3, “An Optical 4-Fiber Bi-Directional Line-Switched Ring”, 1999.
Dobashi Kyosuke
Ide Kazuhiko
Kitajima Mototaka
Kusama Katsumi
Otani Mitsuru
Kabushiki Kaisha Toshiba
Tran Dzung
Vanderpuye Kenneth
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