Advances in OptoElectronics

Research Article

Noise Gain Features of Fiber Raman Amplifier

Table 1

Noise figure and output of FRA in pure silica fiber ( = 50 km) at two backward pump powers. It is assumed that = 1 mW and so = −[dBm].
, −dBm⁢ = 100 mW⁢ = 300 mW
, dB , dB 
12345
180.0024 ⋅ 10−50.0134 ⋅ 10−5
190.0034 ⋅ 10−60.0164 ⋅ 10−6
200.0043 ⋅ 10−70.0203 ⋅ 10−7
210.00510−80.02610−8
21.50.00510−90.0292 ⋅ 10−9
220.0062 ⋅ 10−100.0322 ⋅ 10−10
22.50.00710−110.0362 ⋅ 10−11
230.0089 ⋅ 10−130.04110−12
23.50.0084 ⋅ 10−140.0465 ⋅ 10−14
240.00910−150.052 ⋅ 10−15
250.0123 ⋅ 10−190.065 ⋅ 10−19
270.023 ⋅ 10−290.19 ⋅ 10−29
300.044 ⋅ 10−560.24 ⋅ 10−54
350.1210−1690.66 ⋅ 10−152
400.3601.70
502.707.60
  3 dB level at = 50.6 dB 3 dB level at = 43.2 dB