Relationship between the gain and noise figure of an EDFA

The noise figure (NF) of an EDFA can be calculated according to the following formula: NF = Pase/(H*V*Δv;V*G)
NF: noise figure
Pase: noise per 0.1 nm
H: Planck constant [6.6260755 ± 0.0000040) x 10-34J-s]
V: signal frequency
Δv: 12.5 GHz (0.1 nm)
G: OA gain
Obtain the logarithm: Pase = NF + G �?58

According to the preceding information, a larger OA gain results in a larger NF.

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