Optical: systems and elements – Optical amplifier – Raman or brillouin process
Reexamination Certificate
2006-09-19
2006-09-19
Hughes, Deandra M. (Department: 3663)
Optical: systems and elements
Optical amplifier
Raman or brillouin process
C359S349000
Reexamination Certificate
active
07110166
ABSTRACT:
The present invention aims at providing a method for controlling wavelength characteristics of optical transmission powers by Raman amplification, in which the wavelength characteristics of optical transmission powers are automatically compensated without giving any losses to channel lights to thereby improve transmission characteristics, and an apparatus adopting the same. To this end, the method for controlling wavelength characteristics of optical transmission powers by Raman amplification according to present invention supplies Raman pump light to an optical transmission path (Raman amplifying medium); compensates the wavelength characteristics of optical transmission powers caused by transmission of WDM signal light through the optical transmission path, by gain wavelength characteristics of generated Raman amplification; and monitors the wavelength characteristics of optical transmission powers after Raman amplification to thereby control the gain wavelength characteristics of Raman amplification.
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Kinoshita Susumu
Onaka Miki
Hughes Deandra M.
Staas & Halsey , LLP
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