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Telecoms PM Fiber - Ultra-Short Beat-Length

For EDFA pumps, Raman pump Lyot depolarizers, and telecommunications applications

  • Ultra-short beat-length variants for superior polarization performance
  • Splice compatible with both standard SM fibers and other PM fibers
  • Available in both 245μm and 400μm coating diameters
  • Tested in accordance with Telecordia GR-20-CORE
  • Excellent geometry for splicing

Typical Applications:

  • Pump diode pigtails
  • Erbium Doped Fiber Amplifier (EDFA)
  • Cable Television (CATV)
  • Interferometric sensors
  • Lyot depolarizers

    Product Variants Explained
    HB980T(6.6/125)Short beat-length PM fiber for 980nm telecoms applications
    HB1250T(9/125)Short beat-length PM fiber for 1310nm telecoms applications
    HB14XXTShort beat-length 14XXnm fiber for Raman depolarizers
    Operating Wavelength (nm) 980 - 1310
    Cut-Off Wavelength (nm) 870 - 970
    Numerical Aperture 0.11 - 0.13
    Mode Field Diameter (μm) 6.1 - 7.1 @980nm
    Attenuation (dB/km) ≤2 @980nm
    Beat-Length (mm) @633 ≤1.2
    Proof Test (%) 1 or 2 (100 or 200 kpsi)
    Cladding Diameter (μm) 125 ± 1
    Core Cladding Concentricity (μm) ≤0.4
    Coating Diameter (μm) 245 ± 7
    Coating Type Dual Layer Acrylate
    Operating Temperature (°C) -55 to +85
    Technical Bulletins