Amplifier system with a discrete Raman fiber amplifier module
AssigneeCorning Incorporated
InventorsAlan F. Evans, George F. Wildeman
Life of this patent
Estimating the term…
Abstract
An amplifier system includes: (i) a distributed Raman fiber amplifier adapted to amplify C and L-band signals and; (ii) a discrete Raman fiber amplifier module that includes a C-band amplification stage and an L-band amplification stage. The discrete Raman fiber amplifier module is operatively connected to the distributed Raman fiber amplifier and amplifies signals received from the distributed Raman fiber amplifier. In one embodiment the distributed Raman fiber amplifier and the discrete Raman fiber amplifier share optical pump power provided by the shared pump.
Claims15
An optical amplifier system comprising:
- (i) a distributed Raman fiber amplifier adapted to amplify C and L-band signals and;
- (ii) discrete Raman fiber amplifier module that includes a separate C-band amplification stage and separate an L-band amplification stage, said discrete Raman fiber amplifier being operatively connected to said distributed Raman fiber amplifier and amplifying signals received from said distributed Raman fiber amplifier.
A method of amplifying an optical system comprising the steps of:
- (i) transmitting a C-band optical signal and an L-band optical signal through a distributed Roman fiber amplifier;
- (ii) amplifying said optical signals by utilizing a discrete Raman amplifier that includes a C-band amplification stage, and an L-band amplification stage;
- (iii) compensating signal broadening by utilizing dispersion compensated fibers situated in each of said amplification stages;
- and
- (iv) further amplifying said compensated signals signal by Erbium doped fiber amplifiers.
Dependencies are inferred from the claim text.