Optical: systems and elements – Optical amplifier – Optical fiber
Reexamination Certificate
2011-05-10
2011-05-10
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Optical fiber
C359S330000, C359S334000, C359S339000
Reexamination Certificate
active
07940454
ABSTRACT:
In an optical parametric amplifier of the invention, pumping light which is amplified using a practical optical amplifier such as an EDFA is supplied together with signal light having a wavelength outside the amplification band of the optical amplifier, to a nonlinear optical medium via a multiplexer, to thereby amplify the signal light by an optical parametric amplification effect due to the pumping light in the nonlinear optical medium. As a result, the amplification band of a practical optical amplifier such as an EDFA, can be extended, and the noise characteristics can be improved.
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Bolda Eric
Fujitsu Limited
Staas & Halsey , LLP
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