Polarization & Phase Control
Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB
The FPOL Series All-Fiber Polarization Controllers are constructed from a single continuous optical fiber routed through four independently stepper motor–driven loop paddles. Each paddle functions as a rotatable waveplate, enabling full-range polarization control with ultra-low insertion loss, broad wavelength compatibility, and high optical power handling. Each fiber loop introduces controlled stress and rotation, leveraging birefringence modulation and geometric phase effects to precisely manipulate the polarization state of light. This all-fiber design ensures inherently broadband operation across transmitted wavelengths, with only minor wavelength dependence due to birefringence characteristics. The FPOL system can operate as either a polarization controller or a polarization scrambler.

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.
Type: Standard · Wavelength: 488 · Fiber Type: SMF-28 · Connector: FC/APC
Specifications
Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB
| Controller type | All-fiber loop paddle polarization controller (FPOL series) |
| Wavelength range | 400 ~ 2650 nm |
| Insertion loss | 0.3 dB min, 0.5 dB typical, 0.7 dB max |
| Paddles / stages | 4 independently stepper-motor-driven fiber loop paddles |
| Homing & Repeatability | 0.1° |
| Minimum incremental motion | 0.1° |
| Return loss | ≥ 55 dB |
| Response time | ~1 s (operating frequency DC ~ 1 Hz) |
| Power input | 5 V DC (0.5 W consumption) |
| Communication interface | USB / RS-232 with GUI |
System integration
Integration and compatibility
Use these checks to connect Fiber Polarization Controller – 0.5dB Loss, 2Hz, 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
- Fiber Type: SMF-28, SM450, 460HP, SM600, 780HP, SM800, Hi1060, SM1950, PM400, PM460, PM630, PM780, PM850, PM980, PM1550, PM1950 · Connector: FC/APC, Special
- 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: 488, 532, 650, 780, 850, 980, 1060, 1310, 1550, 2000 · 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: All-fiber loop paddle polarization controller (FPOL series) · Response time: ~1 s (operating frequency DC ~ 1 Hz)
- 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 Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB
Which fiber and connector does the Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB use?
Fiber Type: SMF-28, SM450, 460HP, SM600, 780HP, SM800, Hi1060, SM1950, PM400, PM460, PM630, PM780, PM850, PM980, PM1550, PM1950 · Connector: FC/APC, Special. 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 Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB be included in an optical power budget?
Wavelength: 488, 532, 650, 780, 850, 980, 1060, 1310, 1550, 2000 · 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 Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB require a controller?
Controller type: All-fiber loop paddle polarization controller (FPOL series) · Response time: ~1 s (operating frequency DC ~ 1 Hz). 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 Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB with the closest available models in the Polarization & Phase Control family.
| Selection parameter | Fiber Polarization Controller – 0.5dB Loss, 2Hz, USB (current) | Fiber Inline Polarizer | Fiber Polarization Controller Piezoelectric – 0.5dB, 100kHz |
|---|---|---|---|
| Wavelength range | 488, 532, 650, 780, 850, 980, 1060, 1310, 1550, 2000 | 1060, 1310, 1420, 1550, 980, 850, 780, 650, 550, 450, 400, Special | 2000nm, 1550nm, 1310nm, 1060nm, 980nm, 850nm, 430nm, 530nm, 630nm, 780nm |
| Optical performance | 0.3 dB min, 0.5 dB typical, 0.7 dB max | — | — |
| Fiber type | SMF-28, SM450, 460HP, SM600, 780HP, SM800, Hi1060, SM1950, PM400, PM460, PM630, PM780, PM850, PM980, PM1550, PM1950 | — | SMF28, HI1060, PM1550, PM1310, SM400, SM450, PM400, PM460, SM600, PM630, 780HP, PM780, SM800, PM850, PM980, Hi1060, SM1950, PM1950, Special |
| Connector / control | FC/APC, Special | None, FC/PC, FC/APC, SC/PC, SC/APC, LC/PC, LC/APC, LC/UPC, FC/PC5W, FC/APC5W, FC/PC10W, Special | None, FC/APC, Special |
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