Performance Analysis of Flat Gain Wideband Raman Amplifier for S+C and C+L Band DWDM System

Table 3

Comparison of the proposed investigation with the previous reported system.

Previous reported System	Operating band	No. of Channels	Channel spacing	Gain ripple	Optimization of amplifier	No. of Pumps
4 backward pumping schemes [3]	C band	45	100 GHz	-	No	4
Gbps DWDM system [4]	L band	160	25 GHz	4.5 dB	No	2
8 backward pumping scheme [10]	S band	14	764.7 GHz	<0.4 dB	Yes	8
Gbps and Gbps DWDM system [17]	C+L band	96,64	100 Ghz	-	No	1
320 Channel DWDM system [8]	S+C+L band (With Gain Flattening Filter)	320	25 Ghz	<0.5 dB	Yes	2
64 channel DWDM system	S+C and C+L band (Without Gain Flattening Filter)	64	100 GHz	<0.5 dB	Current Investigation	4