Product Overview
Fabricated via the Modified Chemical Vapor Deposition (MCVD) process, this fiber integrates precisely positioned boron-doped stress-applying parts (SAPs) that generate strong linear birefringence, effectively locking the polarization state along the slow axis. With polarization crosstalk of ≤ -25 dB per meter at 1310 nm, it minimizes polarization fading and suppresses FOG bias drift over temperature and time—key requirements for tactical-grade and navigation-grade inertial systems.
The fiber features a reinforced 165 μm dual acrylate coating, significantly enhancing resistance to microbending and mechanical abrasion during coil winding, potting, and thermal cycling. This ruggedized design ensures consistent performance in harsh operational environments while maintaining compatibility with standard rotational fusion splicers for low-loss (<0.2 dB), high-extinction-ratio (>20 dB) pigtailing.
Technical Specifications
| Brand Name | Winner |
| Model Number | PM1310-80-6.0/165 |
| Fiber Type | Panda-Type Polarization-Maintaining Single-Mode Fiber |
| Operating Wavelength | 1310 nm |
| Attenuation | ≤0.8 dB/km @1310 nm |
| Mode Field Diameter | 6.0 ± 0.5 μm @1310 nm |
| Cut-off Wavelength | 1100–1270 nm |
| Cladding Diameter | 125 ± 1 μm |
| Coating Diameter | 165 ± 5 μm |
| Polarization Crosstalk | ≤ -25 dB per meter @1310 nm |
| Bow (Shoot Length) | ≤ 3.0 mm per meter |
| Tension Screening Level | ≥100 kpsi |
| Manufacturing Process | Modified Chemical Vapor Deposition (MCVD) |
| Key Performance | High geometric uniformity for consistent coil winding
Excellent bending stability down to 15 mm radius
Low splicing loss with axis-aligned fusion splicers
Stable beat length under thermal shock (-55°C to +125°C) |
Applications
- Navigation-grade and tactical-grade fiber optic gyroscopes (FOGs)
- Polarization-maintaining couplers for interferometric sensors
- Laser diode pigtails requiring stable linear polarization output
- Fiber-based current and acoustic sensors with polarization sensitivity
- Test platforms for photonic integrated circuits (PICs) requiring polarized input
Integration Guidance
For optimal FOG performance, wind coils with controlled tension and align the slow axis (indicated by SAP orientation) throughout the entire optical path. The 165 μm thick coating provides superior protection during epoxy potting and thermal cycling, reducing long-term stress-induced birefringence variations. Ideal for applications demanding decades of operational stability in extreme environments.
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