Distributed raman amplifier for optical network and method

Optical: systems and elements – Optical amplifier – Raman or brillouin process

Reexamination Certificate

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C398S059000

Reexamination Certificate

active

06879434

ABSTRACT:
An optical ring is operable to transport traffic signals between nodes. A Raman pump source is coupled to the optical ring. The Raman pump source is operable to provide pump power to at least a portion of the optical fiber ring. Each node comprises an optical splitter operable to at least passively drop traffic to the optical fiber ring. Each node further comprises a pump filter operable to separate at the node the pump power from traffic signals.

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