Optical: systems and elements – Optical amplifier – Optical fiber
Reexamination Certificate
2005-07-26
2005-07-26
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Optical fiber
Reexamination Certificate
active
06922282
ABSTRACT:
An optical amplifier for amplifying WDM light which includes an optical fiber used as an optical amplification medium for amplifying WDM light. A pump light source is provided to generate pump light and an optical splitter is provided to generate first branch pump light and second branch pump light from the pump light. The optical amplifier further includes an optical device guiding the first branch pump light to the optical fiber and guiding the second branch pump light to a transmission line connected to an input side of the optical amplifier.
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Onaka Miki
Sugaya Yasushi
Fujitsu Limited
Hellner Mark
Staas & Halsey , LLP
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