PWB-PMG-820-80-EC – Polarization Maintaining Fiber for Gyroscope
The PWB-PMG family includes high performance Polarization Maintaining Fibers that are specifically designed for integration into Fiber Optic Gyroscopes on or above the earth.
Fiber diameter control is critical during coil winding; our fibers exhibit very high consistency / accuracy of the coating diameter not only in each batch, but also from batch to batch.
Benefits & Features
- Panda & tiger designs available
- Qualified by international inertial sensing manufacturers
- Design for space environment available
- Highly birefringence
- High polarization extinction in coiled applications
- Zero twist
- Round core
- Cladding diameter: 40, 80, 125 µm, other diameters on request
- Various coating diameters, tuned to customers specifications
- High stability coating diameter along each batch and from batch to batch
Applications
- Fiber optic gyroscope
Parameters
| Parameter | Unit | Value |
|---|---|---|
| Cutoff wavelength | nm | < 750 |
| Attenuation @780nm | dB/km | < 10 |
| Beat length @780nm | mm | < 3 |
| Mode field diameter @820nm | µm | 3.2 ± 0.5 |
| Numerical aperture | – | 0.215± 0.02 |
| Core/Clad concentricity | µm | < 1 |
| Cladding diameter | µm | 80 ± 1 |
| Coating diameter | µm | 170 ± 5 |
| Proof test level | kpsi | 100 |
Design Parameters
| Parameter | Value |
|---|---|
| Operating wavelength | 780 |
| Design | E-Core |
| Holding parameter @820nm (m⁻¹) | < 3.10⁵ |
| Coating material | Dual acrylate |
| Operating temperature range | -40 to +85 °C |