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PM-EYDF-17/200

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17/200 Erbium/Ytterbium Co-Doped Double-Clad Fiber

Nufern's proprietary rare earth doping technology is used to deliver Er:Yb co-doped fibers with industry leading power conversion efficiency. Nufern's PM-EYDF-17/200 offers two important attributes much needed for continuous wave and pulsed fiber lasers and amplifiers at 1550 nm. The PM PANDA-style configuration enables the design of lasers and amplifiers with linearly polarized output. In addition, the large core/clad ratio (17/200), enables the design of short length pulsed amplifiers capable of delivering much higher pulse energies and peak powers than conventional single-mode Er/Yb fibers.
Applications
  • LIDAR
  • Eye-safe amplifiers
  • High peak power pulsed amplifiers
Features & Benefits
  • Large core/clad ratio — Enables high peak power pulsed amplifiers
  • PANDA-style stress structure for increased birefringence — Superior optical performance and uniformity
  • All fiber proof-tested to ≥ 100 kpsi — Low risk of mechanical damage and failure

Optical Specifications

Operating WavelengthC-Band and L-Band
Peak Core Erbium Absorption45 ± 10 dB/m near 1535 nm
Cladding Ytterbium Absorption2.0 ± 0.3 dB/m @ 915 nm
Core Numerical Aperture (nominal)0.17
Cladding Numerical Aperture (nominal)0.46
Birefringence (nominal) 1.8 x 10-4

Geometrical & Mechanical Specifications

Core Diameter17.0 ± 2.0 µm
Clad Diameter200.0 ± 10.0 µm
Coating Diameter350 ± 25 µm
Outer Cladding MaterialLow Index Polymer
Proof Test Level≥ 100 kpsi (0.7 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