Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2003-03-03
2009-08-25
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
C359S238000, C359S239000, C372S020000, C372S023000, C372S026000, C372S028000
Reexamination Certificate
active
07580183
ABSTRACT:
In an optical amplifier according to the present invention, a change signal from a change signal source is fed into a light source or a drive circuit. The wavelength of light outputted from the light source is changed based on the change signal. The wavelength-changed output light from the light source is outputted as pumping light from a pumping light generator to be supplied backwardly via an optical multiplexer/demultiplexer into an optical fiber. Signal light is Raman-amplified in the optical fiber with the supply of the pumping light.
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Kakui Motoki
Nishimura Masayuki
Okuno Toshiaki
Bolda Eric
McDermott Will & Emery LLP
Sumitomo Electric Industries Ltd.
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