Erbium doped fiber
EDF 4/125-50
Erbium doped fiber EDF-4/125-50 is designed for amplification of ultra-short pulses, when high efficiency, a short amplifier length and a high negative dispersion (-30..-50 ps/nm/km) are required.

 

Erbium doped fiber

EDF-4/125-50

Core diameter, µm3.5 ± 0.5
Clad diameter, µm125 ± 1
Coating diameter, µm240 ± 30
Mode field diameter, µm~ 5.5
Core NA0.27 ± 0.03
Cutoff wavelength, µm< 0.98
Core absorption (980 nm), dB/m30 ± 5
Core absorption (1532 nm), dB/m50 ± 15
Background loss (1100 nm), dB/km< 30
Dispersion @ 1550nm, ps/nm/km-36
Dispersion slope @ 1550nm, ps/nm2/km< 0.03
Pump-to-signal conversion efficiency, %20 ± 10
Nonconcentricity, µm< 0.5
Other parameters including PM version are available on the request
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