Research Article
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 |
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