In March 2018, the collaboration announced a hybrid EDFA/Distributed
Raman Amplifier achieving record-breaking 120Tb/s capacity on a single fibre.
It was also compared with 1310 nm
Raman amplifier with SOA resulting in wavelength as 1310nm with bandwidth 85 nm [2].
By adding a
Raman amplifier to a fiber span, signal power loss is decreased and it highly improves the signal-spontaneous beat noise performance.
"
Raman amplifier model in single-mode optical fiber," IEEE Photonics Technol.
Ivanovs, "Comparison of semiconductor optical amplifier and discrete
Raman amplifier performance in DWDM systems" Elektronika ir Elektrotechnika, vol.
Besides, there are several types of amplifiers such as SOA, EDFA, and
Raman amplifier that have been introduced to encounter the attenuation effects.
In this model, we used a distributed
Raman amplifier with different two pump schemes are forward and backward pumping.
To boost the reach of GPON, Lee and his team use a device called a
Raman amplifier.
To investigate the performance of SOA and discrete
Raman amplifier a simulation model of a 10 Gbit/s 16 channel DWDM transmission system with none-return-to-zero encoding technique, intensity on-off keying modulation format, and 50 GHz channel spacing has been introduced.