For high efficiency over a wide range of pump powers at 980 nm, we offer these fibers for operation in the C-Band. These fiber products feature excellent spectral reproducibility and batch-to-batch uniformity, drawing on 20 years of production experience. The fibers are optimized for single- or multi-stage amplifiers at various power ranges.
Unit of Measure

Optical Properties

Peak Absorption

N/A @ 1530 nm, 7.0 ± 1.0 dB/m

Mode Field Diameter

N/A @ 1550 nm, 5.3 ± 0.7 µm

PMD (Typical)

N/A 2 fs/m

Absorption Variation Over 1000 m Reel

N/A ≤ 2%

Spectral Variation

N/A ≤ 0.75%


N/A @ 1200 nm, < 10 dB/km

Numerical Aperture

N/A 0.26 ± 0.02

PM or SM



N/A Erbium-Doped Fibers For C-Band

QCE (Typical)

N/A > 0.8

Physical Properties

Cladding Diameter

N/A 125 µm

Coating Diameter

N/A 245 µm

Core/Cladding Concentricity Error

N/A < 0.3 µm

Core Diameter

N/A 2.9 µm

Clad Non-Circularity

N/A < 1%

Core Concentricity Error

N/A <0.3 µm

Coating Non-Circularity

N/A < 2.5%

Coating/Cladding Concentricity Error

N/A < 16 µm

Typical Applications

N/A 25-300 mW Pump Power @ 980 nm CATV and DWDM Systems Optical Amplifiers Splicing Applications

Mechanical and Testing Data

Proof Test Level

N/A 200 2% kpsi

Order From Location

+45 43 45 8888
Priorparken 680, DK-2605
Broendby, Denmark


N/A Coils Colored or Natural Buffers Custom Designs DENMARK LOCATION Fibers available in long lengths on standard spools Fibers available in predetermined lengths and coiled to given diameters Fibers available with natural or colored buffer Fibers may be customized to suit your specific application Tighter Optical Property Specifications


N/A Compatible with OASiX® Software Package
Accurate prediction of EDF performance is essential to applications design. OFS offers specialized OASiX Amplifier Simulation System Software, which allows the designer to predict EDFA performance at all pump powers for the specific lot of EDF purchased. OASiX is also available in a DLL version for compatibility with external optimization tools.

How To Order:

Order By Item #

N/A 27270


Cutoff Wavelength

N/A 840 to 960 nm