Tapering Polarization Maintaining Fibre for Component
This polarization maintaining fibre (PMF) is specially designed for fibre optic gyroscopes (FOGs) and polarization-sensitive components applications. This kind of fibre exhibits extremely low attenuation and excellent birefringence characteristics, and uses in a variety of demanding applications. YOFC PMF is manufactured through the high precision Plasma Chemical Vapor Deposition (PCVD) process. This process produces preforms with precise refractive index profiles, material uniformity and dimensional tolerances, therefore, makes fibres with excellent birefringence, low attenuation and extremely tight tolerances. With dual-layer, UV-cured Acrylate coating, the polarization maintaining fibre has high environmental stability performance over the temperature range of -45 ℃ to +85 ℃ (-49 ℉ to +185 ℉ ).
- Excellent grinding properties
- Tight geometric tolerances
- High environmental stability and reliability
| Fibre Type | PM 980_125-12/250_C | PM 1310_125-13/250_C | PM 14xx_125-13/250_C | PM 1550_125-13/250_C |
| Part No. | PM1015-A+ | PM1016-C+ | PM1018-A+ | PM1017-C+ |
| Optical Properties | ||||
| Operating Wavelength (nm) | 980 | 1310 | 1400 – 1490 | 1550 |
| Cut-off Wavelength (nm) | 800 – 970 | 1100 – 1290 | 1200 – 1380 | 1290 – 1520 |
| Mode Field Diameter (μm) | 6.5±0.5@980nm | 9.0±0.5@1310nm | 9.8±0.5@1450nm | 10.5±0.5@1550nm |
| Attenuation (dB/km) | ≤ 2.5 | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
| Beat Length (mm) | 3.0 – 5.0 | 3.0 – 6.0 | 4.0 – 7.5 | 4.5 – 8.0 |
| Typical Cross Talk at 4m (dB) | ≤-30 | ≤-30 | ≤-30 | ≤-30 |
| Cross Talk at 1000m (dB) | ≤-25 | ≤-25 | ≤-25 | ≤-25 |
| Geometrical Properties | ||||
| Cladding Diameter (μm) | 124.5 ± 1.0 | 124.5 ± 1.0 | 124.5 ± 1.0 | 124.5 ± 1.0 |
| Coating Diameter (μm) | 245.0 ± 7.0 | 245.0 ± 7.0 | 245.0 ± 7.0 | 245.0 ± 7.0 |
| Cladding Non-Circularity (%) | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
| Core Concentricity Error (μm) | ≤0.5 | ≤0.5 | ≤0.5 | ≤0.5 |
| Coating Type | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate | Dual-layer, UV-acrylate |
| Mechanical Properties | ||||
| Operating Temperature (℃) | -45 to +85 | -45 to +85 | -45 to +85 | -45 to +85 |
| Proof Test (100 kpsi) | 100 | 100 | 100 | 100 |
- Polarization maintaining fused-fibre couplers
- Polarization-sensitive components
- Polarization maintaining device pigtails