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YB Fibers

YB250-6-PM

High absorption single clad Yb-doped PM-fiber

Coractive optical fiber spools – YB250-6-PM

YB250-6-PM at a glance

Key specifications

  • 250 ± 50

    Core Absorption @ 915 nm (dB/m)

    Efficient pump absorption over compact length.

  • ≥ 2.2

    Birefringence (x10E-04)

    Stable linear polarization for sensitive optical systems.

  • 6 ± 1

    MFD @ 1060nm (μm)

    Width of the light distribution guided in the core.

  • ≤ 950

    Cutoff Wavelength (nm)

    Wavelength above which the core guides a single mode.

  • <= 10

    Background Loss @1200 nm (dB/km)

    Fiber loss outside the absorption bands.

  • 125 ± 1

    Cladding diameter (μm)

    Outer diameter of the glass cladding.

Description

A highly absorbing, polarization-maintaining (PM), Yb-doped single-clad fiber with a small mode field diameter is well- suited for applications that demand efficient pump light absorption within a compact length and stable polarization control.

Features & Benefits

  • Efficient pump absorption over compact length
  • Single-clad structure for core pumping
  • Low risk of lasing or parasitic amplification
  • Stable linear polarization for sensitive optical systems
  • Minimizes nonlinear effects and thermal load
  • Compact integration in fiber-based setups

Applications

  • Polarized ASE sources
  • Interferometry
  • Pump dump in mode-locked or ultrafast PM laser cavities
  • Broadband polarized light sources for sensing and metrology
  • Optical load / termination in PM systems
  • Fiber optic gyroscopes

YB250-6-PM

Specifications

Optical
Background Loss @1200 nm (dB/km) <= 10
Birefringence (x10E-04) ≥ 2.2
Core Absorption @ 915 nm (dB/m) 250 ± 50
Cutoff Wavelength (nm) ≤ 950
Geometrical & Mechanical
Cladding diameter (μm) 125 ± 1
Coating Diameter (μm) 250 ± 10
Core/Cladding Concentricity Error (μm) ≤ 1
MFD @ 1060nm (μm) 6 ± 1
Proof test (kpsi) <=100
Environmental
Storage Temperature (°C) -40 to +85

YB250-6-PM

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