The ER12-6 Er-doped single-clad fiber features a high absorption and high quantum efficiency that make this product the ideal solution for the design of optical telecom amplifiers. It is also an excellent alternative to the ER8-6 fiber, as its higher absorption would benefit the efficiency required by some telecom applications.

Features & Benefits
  • Low background losses
  • High doping concentration – provides highly efficient energy transfer
  • Low splice loss
  • Erbium-doped fiber amplifiers (EDFA)
  • Telecom
Core Absorption @ 980 nm (dB/m)
≥ 7.0
Core Absorption @ 1530 nm (nominal) (dB/m)
12 ± 2
Core Numerical Aperture
Background Loss @ 1200 nm (dB/km)
< 10.0
Geometrical & Mechanical
Core Diameter (µm)
4 ± 0.5
Cladding Diameter (µm)
125 ± 0.5
Core/Cladding Concentricity Error (µm)
< 0.5
Coating Diameter (µm)
245 ± 10

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