English
- Fibre optic current transformers
- DC/AC current sensor system
- Polarimetric sensor
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 devices in the field of optical fibre sensing, such as key circular polarization-maintaining devices in fibre optic current transformers and other systems. This range of spun fibres can also be tailored to customers' specific needs.
With a dual UV-cured coating structure, the YOFC SF exhibits stable environmental performance across the temperature range of -45°C~+85°C (-49°F~+185°F).
Details
Specification
Documents
Applications
Characteristics
- Excellent and stable optical performance, and low loss
- Excellent mechanical and polishing properties
- Excellent temperature characteristics
- Dual UV-cured coating
Specifications
| Fibre type | SH 1310_125-5/250 | SH 1310_80-5/165 | SH 1310_125-2.5/250 |
|---|---|---|---|
| Part No. | SH1016-A | SH1016-B | SH1016-C |
| Optical properties | |||
| Operating wavelength (nm) | 1310 | 1310 | 1310 |
| Fibre cut-off wavelength (nm) | 1020~1260 | 1020~1260 | 1020~1260 |
| Mode field diameter (μm) | 7.0±1.0@1310nm | 7.0±1.0@1310nm | 7.0±1.0@1310nm |
| Attenuation (dB/km) | ≤2.0@1310nm | ≤2.0@1310nm | ≤2.0@1310nm |
| Line beat length (mm) | 9~14@1310nm | 9~14@1310nm | 4~8@1310nm |
| Geometrical properties | |||
| Pitch (mm) | 5.0±0.2 | 5.0±0.2 | 2.5±0.2 |
| Cladding diameter (μm) | 125.0±2.0 | 80.0±1.5 | 125.0±2.0 |
| Coating diameter (μm) | 245.0±7.0 | 165.0±5.0 | 245.0±7.0 |
| Cladding non-circularity (%) | ≤1.0 | ≤1.0 | ≤1.0 |
| Core/cladding concentricity error (μm) | ≤1.0 | ≤1.0 | ≤1.0 |
| Coating material | Dual-layer, UV-cured acrylate | Dual-layer, UV-cured acrylate | Dual-layer, UV-cured acrylate |
| Mechanical performance | |||
| Operating temperature range (°C) | -45~85 | -45~85 | -45~85 |
| Proof Test level (kpsi) | 100 | 100 | 100 |
Brochure
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