Performance Investigation of Raman- Parametric Hybrid for Broadband Amplification in L-band

In this paper Raman-parametric amplifier has been investigated for long haul Dense Wavelength Division Multiplexed (DWDM), L-band transmission. The performance of the proposed hybrid model has been compared in terms of signal gain and OSNR with FOPA and EDFA FOPA. Feasibility of Raman-FOPA for future long haul extended DWDM systems has been explored. Results indicate an achievable OSNR of 28 dB with gain of >10 dB, over distance of 450 km for 10 Gps, 25 GHz spacing DWDM system without using any dispersion compensation technique. The gain ripple achieved is significantly low at 4.2 dB in absence of any Application of Raman-FOPA hybrid as narrowband long haul optical amplifier has been established by the results achieved and is expected to make significant contribution to evolving DWDM systems.