Erbium doped fiber
EDF 4/125-25
Description
Datasheet

Erbium doped fiber EDF-4/125-25 is designed to minimize the amplifier length without pump-to-signal conversion efficiency degradation.

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Erbium doped fiber

EDF-4/125-25
Core diameter, µm 4 ± 0.5
Clad diameter, µm 125 ± 1
Coating diameter, µm 240 ± 30
Mode field diameter, µm 5.5 ÷ 7.5
Core NA 0.24 ± 0.03
Cutoff wavelength, µm < 0.98
Core absorption (980 nm), dB/m 14 ± 2
Core absorption (1532 nm), dB/m 25 ± 5
Background loss (1100 nm), dB/km < 20
Pump-to-signal conversion efficiency, % 11 ± 4
Nonconcentricity, µm < 0.5
Other parameters including PM version are available on the request
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