C-Band Separate Raman Fiber Amplifier (RFA5000)

RFA5000
C-Band Separate Raman Fiber Amplifier

Product description

1. Raman Fiber Amplifier (RFA) is the only device that can operate in 1300~1600 nm.
2. The gain medium of EDFA is Erbium-doped Fiber (EDF). Its gain area is distributed at long transmitting fiber that is 25km from the output end.
3. Low noise figure marks the super advantages as following:
During Single Mode Fiber(G. 652) transmission, adopting Distributed Raman Amplifier, it can reduce the loss for 5.5dB (Typical value) at effective cross-distance. Compared with EDFA, the input power to the fiber is reduced and the damage of fiber non-linearity effect (SBS) is weakened.
In OSNR calculation, the Equivalent Noise Figure of distributed backward pump Raman Amplifier is 0dB, typical value 0~-2dB, which has remarkable help for improvement of cross-band length, increase system OSNR and transmission distance.
4. With different Raman Gain and Gain bandwidth to meet differential needs. The unit adopts Japanese Fitel Raman pump laser, built-in perfect laser APC, AGC, ATC closed-looped circuit ensuring long life and stable operation of the pump laser.

Product features

1.Perfect laser APC, AGC, ATC closed-looped circuit ensuring long life and stable operation of the pump laser.
2.Low noise figure and flat gain.
3.Adopts famous Fitel Raman pump laser.
4.Gain bandwidth: C-Band (1528~1563nm).

Main application

1.Fiber CATV system, extra-long trunk that is inconvenient for building relay station.
   Relay distance > 60Km.
   Single span distance > 80Km.
2.DWDM, CATV extra-long trunk optical transmission system.
3.Submarine optical transmission system.