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High Precision Polarization Maintaining Fiber Array FA - China Suppliers and Factory for Fiber Laser and Sensor Applications
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PM FAU (1).jpg
PM FAU (1).jpg

High Precision Polarization Maintaining Fiber Array FA - China Suppliers and Factory for Fiber Laser and Sensor Applications

Introducing our state-of-the-art fiber laser equipment, designed for superior performance in various applications. As a leading manufacturer in China, we pride ourselves on offering high-quality products with low loss, high extinction ratio, and exceptional return loss. Our fiber laser sensors come in multiple configurations including 1ch, 2ch, 3ch, and 4ch to meet diverse needs. Available in sizes such as 80um, 127um, 250um, and 2D, our products are engineered for precision with axis alignment of +/-2 degrees. Partner with trusted suppliers and factories for reliable and innovative fiber laser solutions that elevate your project outcomes
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    Product Details

    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.

    PM FAU (3)
    PM FAU (2)

    Its core technical advantages focus on three aspects:

    🎯
    High-precision polarization alignment: Through precision mechanical processing and optical calibration, the polarization axis alignment error can be controlled within ±1°, ensuring the polarization state of polarized optical signals remains stable during transmission. The minimum single-mode polarization-maintaining insertion loss is only 0.5dB, and the return loss exceeds 55dB.
    ⚡
    High-density integration: It supports multi-channel designs such as 8CH and 16CH, and the channel spacing can be customized according to module requirements (e.g., 250μm, 500μm), adapting to the packaging of miniaturized optical transceivers.
    🛡️
    High environmental adaptability: Adopting ceramic V-groove and metal shell packaging, it can withstand a wide temperature working environment from -40℃ to 85℃, with excellent anti-vibration and anti-shock performance, meeting the long-term stable operation needs of complex scenarios such as data centers and 5G base stations.

    The PM FAU utilizes birefringence and an asymmetric structure to achieve an extinction ratio of ≥20 dB and a polarization axis deviation within ±3°, complying with the Telcordia GR-1221-CORE reliability standard.

    🚀 Applications: Data Center, Communications, Auto-driving
    📋 Characteristics: High Extinction Ratio, Low Loss, Axis Alignment +/-2Deg

    Frequently Asked Questions

    Q1: What makes PM FAU different from ordinary FAUs?
    A1: Unlike ordinary FAUs that only couple optical signals, PM FAU uses special polarization axis alignment technology to arrange polarization-maintaining fibers in fixed directions (e.g., 0°/90°). This prevents polarization state crosstalk during multi-channel transmission.
    Q2: What is the polarization axis alignment accuracy of this PM FAU?
    A2: Through precision optical calibration and mechanical processing, the polarization axis alignment error is controlled within ±1°, with a polarization axis deviation within ±3°.
    Q3: What are the insertion loss and return loss values?
    A3: The PM FAU features a minimum single-mode polarization-maintaining insertion loss of only 0.5dB, and a return loss exceeding 55dB.
    Q4: What customization options are available for channel design?
    A4: It supports multi-channel configurations like 8CH and 16CH, with customizable channel spacings (such as 250μm or 500μm) to fit compact optical transceiver designs.
    Q5: Can the PM FAU operate in harsh environments?
    A5: Yes, it is packaged with ceramic V-grooves and metal shells, allowing it to operate reliably between -40℃ and 85℃. It offers robust anti-vibration and anti-shock performance, meeting Telcordia GR-1221-CORE reliability standards.
    Q6: What are the main applications of this PM FAU?
    A6: It is designed for high-speed optical transceivers (100G and above), coherent optical transceivers, silicon photonics transceivers, data centers, telecommunications, and auto-driving systems.