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YB Fibers

DCF-YB-20/128P-08-FA-G2

Ytterbium-Doped Fiber for Pulsed Lasers

Coractive optical fiber spools – DCF-YB-20/128P-08-FA-G2

DCF-YB-20/128P-08-FA-G2 at a glance

Key specifications

  • 5.0 ± 0.5

    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.

  • 0.08 ± 0.01

    Core Numerical Aperture

    Batch-to-batch consistency in beam quality performance.

  • 128 ± 3

    Cladding Diameter (µm)

    Outer diameter of the glass cladding.

  • Min 0.45

    Cladding Numerical Aperture

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

  • <= 100

    Background loss @1200 nm (dB/km)

    Photodarkening-free – ensures stable long-term operation.

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 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-08-FA-G2

Specifications

Optical
Background loss @1200 nm (dB/km) <= 100
Cladding Absorption @ 915 nm (dB/m) 5.0 ± 0.5
Cladding Absorption @ 974 nm (dB/m) Typ. 30
Core Numerical Aperture 0.08 ± 0.01
Cladding Numerical Aperture Min 0.45
Geometrical & Mechanical
Core Diameter (µm) 20 ± 2
Cladding Diameter (µm) 128 ± 3
Core/Cladding Concentricity Error (µm) < 1.5
Coating Diameter (µm) 260 ± 20
Proof Test (kpsi) >= 100
Cladding Geometry Octagonal
Environmental
Storage Temperature (°C) -40 to +85

DCF-YB-20/128P-08-FA-G2

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