High Precision Polarization Maintaining Fiber Array FA - China Suppliers & Factory for Fiber Laser Sensors and Equipment
Introduction: In high-speed optical transceivers of 100G and above, especially coherent optical transceivers and silicon photonics transceivers, PM FAU (Polarization-Maintaining Fiber Array Unit) serves as the "key hub" for ensuring the stable transmission of polarized optical signals. Different from ordinary FAUs that only realize high-density coupling of optical signals, PM FAU uses special polarization axis alignment technology to accurately arrange polarization-maintaining fibers in fixed polarization directions (e.g., 0°/90°). While enabling parallel transmission of multi-channel optical signals, it effectively avoids polarization state crosstalk, providing core support for the signal integrity of high-speed optical modules.
High-Precision Alignment
Through precision mechanical processing and optical calibration, the polarization axis alignment error is controlled within ±1°, ensuring polarization state stability. The minimum single-mode polarization-maintaining insertion loss is only 0.5dB, and return loss exceeds 55dB.
High-Density Integration
Supports multi-channel designs such as 8CH and 16CH. The channel spacing can be customized according to module requirements (e.g., 250μm, 500μm), adapting to the packaging of miniaturized optical transceivers.
High Adaptability
Adopting ceramic V-groove and metal shell packaging, it withstands wide working temperatures from -40℃ to 85℃ with excellent anti-vibration/anti-shock performance, complying with Telcordia GR-1221-CORE reliability standard.
