Performance Investigation of L- Band Raman Parametric Amplifier cascade for 96 X 100 Gbps Dense Wavelength Division Multiplexed System

Abstract

We investigate the use of highly non-linear fibers (HNLF) for Raman amplification in Raman-Fiber optical parametric amplifiers (RA-FOPA) hybrid. We demonstrate gain enhancement of minimum 13.32 dB using RA-FOPA cascade in 96 X100 Gbps high data rate, Dense Wavelength Division Multiplexed system (DWDM) compared to Raman- assisted parametric amplifiers used. The use of HNLF for Raman amplification has been investigated and results compared with use of Single Mode Fibers (SMF). The results show long length SMF interaction to given high gain but HNLF offers more gain uniformity with low peak to peak gain variation and ripple as low as 2.1 dB. Keywords: Parametric amplifiers, Raman amplifier, DWDM