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Spun Fibre

Spun Fibre

SF
The YOFC spun fibre (SF) is manufactured using the advanced and mature PCVD process, featuring accurate refractive index distribution, excellent geometric symmetry of cross section, excellent longitudinal uniformity, and high birefringence. Due to the optimized stress element design and low-speed spin drawing process control of fibre preform, the SF exhibits excellent environmental immunity and mechanical properties. It can meet the application requirements of circular polarization-maintaining d
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Applications

  • Fibre optic current transformers

  • DC/AC current sensor system

  • Polarimetric sensor

Characteristics

  • Excellent and stable optical performance, and low loss

  • Excellent mechanical and polishing properties

  • Excellent temperature characteristics

  • Dual UV-cured coating

Specifications

Fibre typeSH 1310_125-5/250SH 1310_80-5/165SH 1310_125-2.5/250
Part No.SH1016-ASH1016-BSH1016-C
Optical properties
Operating wavelength (nm)131013101310
Fibre cut-off wavelength (nm)1020~12601020~12601020~1260
Mode field diameter (μm)7.0±1.0@1310nm7.0±1.0@1310nm7.0±1.0@1310nm
Attenuation (dB/km)≤2.0@1310nm≤2.0@1310nm≤2.0@1310nm
Line beat length (mm)9~14@1310nm9~14@1310nm4~8@1310nm
Geometrical properties
Pitch (mm)5.0±0.25.0±0.22.5±0.2
Cladding diameter (μm)125.0±2.080.0±1.5125.0±2.0
Coating diameter (μm)245.0±7.0165.0±5.0245.0±7.0
Cladding non-circularity (%)≤1.0≤1.0≤1.0
Core/cladding concentricity error (μm)≤1.0≤1.0≤1.0
Coating materialDual-layer, UV-cured acrylateDual-layer, UV-cured acrylateDual-layer, UV-cured acrylate
Mechanical performance
Operating temperature range (°C)-45~85-45~85-45~85
Proof Test level (kpsi)100100100