Tapering Polarization Maintaining Fibre for Component

General Details

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 ℉ ).

Features
  • Excellent grinding properties
  • Tight geometric tolerances
  • High environmental stability and reliability
Specifications
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
Applications
  • Polarization maintaining fused-fibre couplers
  • Polarization-sensitive components
  • Polarization maintaining device pigtails
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