Method and apparatus for restoration of optical ring network...

Optical communications – Fault recovery

Reexamination Certificate

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C398S006000, C398S007000, C398S009000, C398S017000, C398S018000, C398S034000, C398S037000, C398S059000, C398S097000, C398S177000, C398S180000

Reexamination Certificate

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08036526

ABSTRACT:
A method and apparatus for restoration of operating conditions of a WDM optical ring network comprising a plurality of amplifiers linked together in a ring after a break or fault has occurred in the network. The method comprises in response to repair of the break or other fault, increasing output power or/and pump power of an amplifier in the network such that the output power or/and pump power increases substantially in accordance with a ramp function.

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patent: 2005/055476 (2005-06-01), None

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