1x2/2x2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
Applications:
Fiber Laser
Fiber Sensor
Telecommunications
Testing Systems
Specifications:
| Parameters | Unit | Values | |||
| Port Type | 1X2 | 2X2 | |||
| Operating Wavelength 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 specifications 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.