Motorized Fiber Polarization Controller
A polarization controller is an effective tool for controlling a single-mode fiber to produce various polarization states. A driver provides 4 channels of DC voltage that alternate between +/-5 V to dynamically control the polarization state of the single-mode fiber. The 5 V DC voltage drives the fiber-squeezing devices inside the polarization controller, which exert stress of more than 25 N on the fiber - enough to vary the polarization state over a 360-degree range. The three fiber-squeezing devices inside the motorized polarization controller are offset by 45 degrees from each adjacent fiber-squeezing device, and the fourth fiber-squeezing device is used for real-time compensation control, thereby avoiding the need for re-resetting caused by reaching control limits.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 3 |
| Drive Voltage Range | +/-5V |
| 3dB Bandwidth | 100Hz |
| Recommended Scrambling Frequency | 6；11；31；71Hz |
| Maximum Power Consumption per Channel | 0.5W |
| Electrical Interface (See Notes) | DB-9 |
| Phase Retardation Range | Minimum 2 p |
| Insertion Loss (Without Connectors) | <0.4 |
| Back Reflection (Without Connector) | >70 |
| Startup Loss (-5V to +5V) | ±0.03dB |
| Polarization Dependent Loss | < 0.06dB |
| 3dB Bandwidth | 100Hz |
| Startup Loss (-5V to +5V) | ±0.03dB |
Datasheet
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