The Polarization-Maintaining (PM) Fiber Array (FA) is an optical device that precisely arranges and fixes PM fibers onto a substrate using V-groove structures. It maintains the polarization state of light, making it widely used in high-precision optical communication and sensing applications. The V-groove design ensures accurate alignment and stable polarization, with an extinction ratio typically greater than 20 dB (@1550 nm).
The end-face polishing angle can be customized to minimize optical reflection and reduce insertion loss (≤0.3 dB).
- Applications:
- Optical Communication: Used in coherent optical communication, CPO, 5G/6G networks, and data center interconnects, supporting high-speed parallel transmission (e.g., 100G PSM4 modules).
- LiDAR: Enhances the signal-to-noise ratio of 1550 nm fiber-based LiDAR systems, improving autonomous driving accuracy.
- Fiber Optic Gyroscope (FOG): Serves as a key component that directly affects bias stability and measurement accuracy.
- Optical Sensors: Applied in environmental monitoring, intelligent transportation, and other scenarios requiring stable polarization control.
- Features:
- Polarization Stability: Utilizing birefringence and asymmetric structural design, the PM FA achieves an extinction ratio ≥20 dB, polarization axis deviation within ±3°, and complies with Telcordia GR-1221-CORE reliability standards.
- End-Face Processing and Polishing: Supports multiple polishing angles (0°, 8°, 42.5°, 45°) with flatness error <200 nm and protrusion <200 nm, adaptable to various optical module requirements.
Technical Specifications / Features:
- V-groove structure for precise fiber alignment
- Customizable end-face polishing angles
- Extinction ratio ≥20 dB (@1550 nm)
- Insertion loss ≤0.3 dB
- Return loss ≥50 dB
- Operating temperature: -5 ~ 70℃
- Storage temperature: -40 ~ 85℃
- Maximum optical power: 1W
- Available in multiple channel configurations (1CH, 2CH, 4CH, 8CH, 16CH, 24CH)
- Fiber pitch: 127 μm, 250 μm, or others
- Core pitch accuracy: ≤0.5 μm
- Fiber type: PM Fiber 1310, 1550 nm