Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2009-02-04
2011-11-08
Bolda, Eric (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
Reexamination Certificate
active
08054538
ABSTRACT:
A Raman amplification apparatus includes a pumping light supplying section, a main signal wavelength light level acquisition section, a monitoring signal wavelength light level acquisition section, a function information storage section for storing, as function information, information regarding functions for deriving a noise amount and a gain by Raman amplification with regard to a monitoring signal wavelength light with respect to pumping light power supplied from the pumping light supplying section, and a transmission characteristic derivation section for deriving a transmission characteristic on an optical transmission line based on information acquired by the main signal wavelength light level acquisition section and the monitoring signal wavelength light level acquisition section and the function information stored in the function information storage section, and Raman gain is derived with high accuracy in comparison with the conventional technique.
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Fukushi Togo
Kondoh Masanori
Noheji Kiyotoshi
Onaka Miki
Bolda Eric
Fujitsu Limited
Fujitsu Patent Center
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