Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2007-08-28
2007-08-28
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
C359S341410, C359S337400
Reexamination Certificate
active
11212903
ABSTRACT:
A multiple-wavelength-pumped Raman amplifier includes a control unit that controls, based on a relational expression associating an amount of fluctuation in a current signal light power at a signal input end, an amount of fluctuation in a current pumping light power at a pumping light input end, an amount of fluctuation in the current signal power at a signal output end, and an amount of fluctuation in the current pumping light power at a pumping light output end, two fluctuation amounts by determining other two fluctuation amounts in advance, to determine pumping light powers satisfying the relational expression.
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Fujimura Koji
Nakajima Takeshi
Namiki Shu
Sakano Misao
Hellner Mark
The Furukawa Electric Co. Ltd.
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