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Part #:
EDFL-980-HP

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L-Band Erbium-Doped Single-Mode Fiber

Nufern high performance L-Band Erbium-doped fibers are designed for use in L-band amplifiers and compact ASE sources. The 80 μm version is a reduced-cladding fiber ideal for small form-factor devices. All Nufern erbium-doped fibers are fabricated with a proprietary doping technology and have highly consistent and reproducible spectroscopy, ensuring intra-lot and lot-to-lot uniformity. These fibers are extensively characterized and accompanied by lot specific data.
Applications
  • L-Band amplifiers
  • Compact ASE sources
  • Small form factor packages
Features & Benefits
  • Highly consistent and reproducible spectroscopy — no need to batch matching GFFs
  • Excellent core concentricity — low splice loss
  • Detailed lot-specific characterization data — compatible with modeling programs

Optical Specifications

Operating Wavelength (nominal)L-Band
Mode Field Diameter5.5 ± 0.5 µm @ 1550 nm
Peak Absorption25 ± 2 dB/m near 1530 nm
≥ 7.0 dB/m near 980 nm
Loss≤ 15.0 dB/km @ 1200 nm
Second Mode Cut-Off920 ± 50 nm
Core Numerical Aperture (nominal)0.25

Geometrical & Mechanical Specifications

Clad Diameter125.0 ± 1.0 µm
Coating Diameter245 ± 10 µm
Core-Clad Concentricity< 0.3 µm
Coating/Clad Offset≤ 5 µm
Coating MaterialUV Cured, Dual Acrylate
Operating Temperature-40 to +85 °C
Proof Test Level≥ 200 kpsi (1.4 GN/m²)

Note: Perfectly matched passive versions are available for many of our active fibers.
See our Component and Delivery Fibers cheat sheet. (PDF)

RoHS Compliant