北京供应1550nm保偏耦合器 本公司生产的保偏光纤器件波长范围从980nm到1550nm，按照客户要求还可以提供C-Band,LBand 等宽带器件。广泛应用于保偏光纤放大器，光纤激光器，高速通讯系统及实验用测试仪器及设备。具有宽带宽， 高回损，高消光比，环境稳定性强等特点。 Features: Low Insertion Loss High Extinction Ratio High Return Loss Excellent environmental stability and reliability Applicati*: Fiber Laser Fiber Sensor Telecommunicati* Testing Systems Specificati*: Parameters Unit Values Port Type 1X2 2X2 Operating W*elength Range nm 1310±40 & 1550±40 Excess Loss dB ≤0.7 ≤1.0 Uniformity (only for 50/50) dB ≤0.5 ≤0.7 Extinction Ratio for F type & (B type) dB ≥22 & (20) ≥22 & (18) Tap Ratio (Port 2/4) % 1±0.2%, 2±0.4%, 5±1%, 10%±2%, and 50% Return Loss dB ≥50 Handling Power mW ≤500 (only for Splitter) Tensile Load N ≤5 Fiber Type - SMF-28e or PM Panda Fiber on Tap Port - PM Panda Fiber on lnput & Output Port 1x2 B Type Port1 to Port2 & 3, Port2 is tap port. F Type Port3 to Port1 & 2, Port2 is tap port. 2x2 B Type Port1 to Port2 & 3, Port2 is tap port. Port3 to Port1 & 4, Port4 is tap port. F Type Port1 to Port3 & 4, Port4 is tap port. Port3 to Port1 & 2, Port2 is tap port. “B” for Both axis working, “F” for Fast axis blocking. *The specificati* are w/o connector. * For devices with connectors, 0.3dB higher for IL, 5dB lower for RL and 2dB lower for ER. * For device with connector, key aligned to slow axis.