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YB Fibers

DCF-YB-20/128P-10-FHA-G2

Double-Clad Ytterbium-Doped Fiber

Coractive optical fiber spools – DCF-YB-20/128P-10-FHA-G2

DCF-YB-20/128P-10-FHA-G2 at a glance

Key specifications

  • 9.0 ± 2.0

    Cladding Absorption @ 915 nm (dB/m)

    Large core diameter with high pump absorption – allows a shorter fiber length for a more compact and less expensive design while reducing non-linear effects.

  • 20 ± 2

    Core Diameter (µm)

    Diameter of the light-guiding core.

  • 0.10 ± 0.02

    Numerical Aperture – Core

    Batch-to-batch consistency in beam quality performance.

  • 128 ± 3

    Cladding Diameter (µm)

    Outer diameter of the glass cladding.

  • Min 0.45

    Numerical Aperture – Cladding

    Wide, flat absorption from 910 nm to 970 nm – reduces pump cooling requirements and allows 940-960 nm pumping.

  • Typ. 54

    Cladding Absorption @ 975 nm – Nominal (dB/m)

    Pump light absorbed per metre by the doped core, measured through the cladding.

Description

This phosphosilicate Yb-doped double-clad fiber features high and flattened pump absorption with photodarkening-free performance. This fiber is the ideal solution for a wide range of demanding high peak power pulsed fiber laser and amplifier applications in the industrial and medical markets.

Features & Benefits

  • Large core diameter with high pump absorption – allows a shorter fiber length for a more compact and less expensive design while reducing non-linear effects
  • Photodarkening-free – ensures stable long-term operation
  • Wide, flat absorption from 910 nm to 970 nm – reduces pump cooling requirements and allows 940-960 nm pumping
  • Batch-to-batch consistency in beam quality performance

Applications

  • High-energy / high peak power pulsed lasers & amplifiers for MOPA configuration
  • Laser marking and engraving
  • Medical

DCF-YB-20/128P-10-FHA-G2

Specifications

Optical
Cladding Absorption @ 915 nm (dB/m) 9.0 ± 2.0
Cladding Absorption @ 975 nm – Nominal (dB/m) Typ. 54
Numerical Aperture – Core 0.10 ± 0.02
Numerical Aperture – Cladding Min 0.45
Geometrical & Mechanical
Core Diameter (µm) 20 ± 2
Cladding Diameter (µm) 128 ± 3
Core/Cladding Concentricity Error (µm) <= 1.5
Cladding Geometry Octogonal
Coating Diameter (µm) 260 ± 20
Proof Test (kpsi) ≥ 100
Environmental
Storage Temperature (°C) -40 to +85

DCF-YB-20/128P-10-FHA-G2

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