Polarization & Phase Control
High Precision No Drift Polarization Controller – Repeatable, USB
The POLU is a turn-key module, providing precise polarization control with three independently step-motor-driven rotatable waveplates, adaptable for both fiber-coupled and free-space applications across a wide range of operating wavelengths and high optical powers. The POLU is designed to convert incoming light with any polarization state into a specific polarization state on the Poincaré sphere, working together with a polarimeter. With a single or dual rotator configuration using polarizer plates, polarizer prisms, or polarization beam splitters, the POLU functions as a polarizer with sub-degree directional resolution. A high-precision driver with a built-in encoder allows adjustments with accuracy better than 0.03 degrees, managed through an intuitive GUI accessible via USB or RS232. This plug-and-play unit includes a wall-pluggable DC power supply.
Configuration options
Build & quote
Configure the options below and add your exact build to the enquiry — we confirm the part number and availability.
We confirm the exact part number for your configuration on enquiry.
Wavelength: 1550nm · Stage 1: 1/2 waveplate · Stage 2: 1/4 waveplate · Stage 3: 1/2 waveplate · Interface: USB · Input Fiber: SMF-28 · Output Fiber: SMF-28 · Fiber Cover: Bare fiber · Fiber Length: 1.0 m · Connector: None
Specifications
High Precision No Drift Polarization Controller – Repeatable, USB
| Controller type | High-precision motorized waveplate polarization controller (POLU series) |
| Wavelength range | 400 ~ 2650 nm |
| Waveplates | 3 independently motorized rotating stages (half-wave and quarter-wave plates) |
| Angular rotation range | 0 ~ 360° continuous rotation |
| Angular resolution | 0.001° encoder resolution (0.03° precision control) |
| Minimum incremental motion | 0.05° |
| Insertion loss | 1.0 dB typical (1.5 dB max) |
| Return loss | ≥ 50 dB |
| Power input | 5 V DC (0.5 W power consumption) |
| Communication interface | USB and RS-232 with intuitive GUI and Python API |
System integration
Integration and compatibility
Use these checks to connect High Precision No Drift Polarization Controller – Repeatable, USB to the surrounding optical, mechanical and control system. Every value shown is taken from this model's own specification record.
- Optical interface and fiber
- Interface: USB · Input Fiber: SMF-28, Hi1060, SM980, SM850, 780HP, SM1950, Free Space, 50/125
- Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
- Wavelength and loss budget
- Wavelength: 1550nm, 1310nm, 1060nm, 980nm, 850nm, Special · Wavelength range: 400 ~ 2650 nm
- Check the Polarization & Phase Control passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
- Control interface
- Controller type: High-precision motorized waveplate polarization controller (POLU series)
- Match supply voltage, analog or digital command range, connector pinout and default optical state to the instrument interlock. Confirm the unpowered state explicitly — it decides what happens to the link on a power failure.
Technical FAQ
Integration questions for High Precision No Drift Polarization Controller – Repeatable, USB
Which fiber and connector does the High Precision No Drift Polarization Controller – Repeatable, USB use?
Interface: USB · Input Fiber: SMF-28, Hi1060, SM980, SM850, 780HP, SM1950, Free Space, 50/125. Specify connector polish and fiber architecture together. FC/PC, FC/APC and SMA interfaces, and single-mode, multimode and polarization-maintaining fibers, impose different return-loss, mode-field and alignment requirements.
How should the High Precision No Drift Polarization Controller – Repeatable, USB be included in an optical power budget?
Wavelength: 1550nm, 1310nm, 1060nm, 980nm, 850nm, Special · Wavelength range: 400 ~ 2650 nm. Check the Polarization & Phase Control passband, insertion loss, return loss and power handling at the actual source wavelength; a nominal telecom-band label is not a substitute for the configured range.
Does the High Precision No Drift Polarization Controller – Repeatable, USB require a controller?
Controller type: High-precision motorized waveplate polarization controller (POLU series). Match supply voltage, analog or digital command range, connector pinout and default optical state to the instrument interlock. Confirm the unpowered state explicitly — it decides what happens to the link on a power failure.
Need this configured?
Share your wavelength, fiber type, connector, power handling and control requirements and we will qualify the matching configuration and part number.
Model selection
Nearby series comparison
Compare High Precision No Drift Polarization Controller – Repeatable, USB with the closest available models in the Polarization & Phase Control family.
| Selection parameter | High Precision No Drift Polarization Controller – Repeatable, USB (current) | High Speed Fiber Polarization Controller, 10ns |
|---|---|---|
| Wavelength range | 1550nm, 1310nm, 1060nm, 980nm, 850nm, Special | 1310, 1550, Special |
| Optical performance | 1.0 dB typical (1.5 dB max) | — |
| Connector / control | None, FC/APC, Special | None, FC/PC, FC/APC, SC/PC, SC/APC, ST/PC, LC/PC, LC/UPC, Special |
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