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Short Beat-Length Fiber

The #1 fiber for fiber optic gyroscopes

  • High polarization extinction in coiled applications
  • Ultra-short beat-length fibers offer the very best coil performance
  • -55°C to +85°C in-coil operating range
  • Tight coating diameter tolerance for high accuracy coil winding
  • 80μm OD saves space and enhances lifetime
  • Radiation tolerant variants for space applications
  • High reliability in coiled applications
  • High temperature coating variant available for downhole FOGs (fiber optic gyroscopes)

Typical Applications:

  • FOGs (fiber optic gyroscopes)
  • Current sensors
  • Delay lines

    Comparison
    Model HB800G-SB HB1500G-SB(6.5/80/135) HB1500G-SB(6.5/80/155)
    Operating Wavelength (nm) 810 - 1000 1520 - 1650 1520 - 1650
    Cut-Off Wavelength (nm) 660 - 800 1360 - 1520 1360 - 1520
    Numerical Aperture 0.14 - 0.18 0.19 - 0.21 0.19 - 0.21
    Mode Field Diameter (μm) 3.7 - 5.0 @830nm 6.0 - 6.85 @1550nm 6.0 - 6.85 @1550nm
    Attenuation (dB/km) ≤5 @830nm ≤1.5 @1550nm ≤1.5 @1550nm
    Beat-Length (mm) @633 ≤1.0 ≤1.0 ≤1.0
    Proof Test (%) 1 or 2 (100 or 200 kpsi) or greater upon request 1 or 2 (100 or 200 kpsi) or greater upon request 1 or 2 (100 or 200 kpsi) or greater upon request
    Cladding Diameter (μm) 80 ± 1 80 ± 1 80 ± 1
    Coating Diameter (μm) 165 ± 5 135 ± 2 155 ± 5
    Coating Type Dual Layer Acrylate Dual Layer Acrylate Dual Layer Acrylate
    Operating Temperature (°C) -55 to +85 -55 to +85 -55 to +85
    Product Variants Explained
    HB800G-SB Short beat-length PM fiber for 830nm fiber optic gyroscopes
    HB1500G-SB Short beat-length PM fiber for 1550nm fiber optic gyroscopes
    HB1500G-RT-SB Short beat-length and radiation tolerant PM Fiber for 1550nm fiber optic gyroscopes
    Operating Wavelength (nm) 810 - 1000
    Cut-Off Wavelength (nm) 660 - 800
    Numerical Aperture 0.14 - 0.18
    Mode Field Diameter (μm) 3.7 - 5.0 @830nm
    Attenuation (dB/km) ≤5 @830nm
    Beat-Length (mm) @633 ≤1.0
    Proof Test (%) 1 or 2 (100 or 200 kpsi) or greater upon request
    Cladding Diameter (μm) 80 ± 1
    Core Cladding Concentricity (μm) ≤1.0
    Coating Diameter (μm) 165 ± 5
    Coating Type Dual Layer Acrylate
    Operating Temperature (°C) -55 to +85
    Technical Bulletins