Short Beat-Length Fiber
The #1 fiber for fiber optic gyroscopes
- High polarization extinction in coiled applications
- Ultra-short beat-length fibers offer the very best coil performance
- -55°C to +85°C in-coil operating range
- Tight coating diameter tolerance for high accuracy coil winding
- 80μm OD saves space and enhances lifetime
- Radiation tolerant variants for space applications
- High reliability in coiled applications
- High temperature coating variant available for downhole FOGs (fiber optic gyroscopes)
Typical Applications:
- FOGs (fiber optic gyroscopes)
- Current sensors
- Delay lines
Comparison
| | HB800G-SB | HB1500G-SB (6.5/80/135) | HB1500G-SB (6.5/80/155) |
|---|---|---|---|
| Operating Wavelength (nm) | 810-1000 | 1520-1650 | 1520-1650 |
| Cut-Off Wavelength (nm) | 660-800 | 1360-1520 | 1360-1520 |
| Numerical Aperture | 0.14-0.18 | 0.19-0.21 | 0.19-0.21 |
| Mode Field Diameter (μm) | 3.7-5.0 @830nm | 6.0-6.85 @1550nm | 6.0-6.85 @1550nm |
| Attenuation (dB/km) | ≤5 @830nm | 1.5 @1550nm | 1.5 @1550nm |
| Beat-Length (mm) @633nm | ≤1.0 | ≤1.0 | ≤1.0 |
| Proof Test (%) | 1 or 2 (100 or 200 kpsi) or greater upon request | 1 or 2 (100 or 200 kpsi) or greater upon request | 1 or 2 (100 or 200 kpsi) or greater upon request |
| Cladding Diameter (μm) | 80 ± 1 | 80 ± 1 | 80 ± 1 |
| Core Cladding Concentricity (μm) | ≤1.0 | ≤1.0 | ≤1.0 |
| Coating Diameter (μm) | 165 ± 5 | 135 ± 2 | 155 ± 5 |
| Coating Type | Dual Layer Acrylate | Dual Layer Acrylate | Dual Layer Acrylate |
| Operating Temperature (ºC) | -55 to +85 | -55 to +85 | -55 to +85 |
Specifications
Product Variants Explained
| HB800G-SB | Short beat-length PM fiber for 830nm fiber optic gyroscopes |
| HB1500G-SB(6.5/80/135) | Short beat-length PM fiber for 1550nm fiber optic gyroscopes with 135um coating diameter |
| HB1500G-SB(6.5/80/155) | Short beat-length PM fiber for 1550nm fiber optic gyroscopes with 155um coating diameter |
Product Specifications
| Operating Wavelength (nm) | 810 - 1000 |
|---|---|
| Cut-Off Wavelength (nm) | 660 - 800 |
| Numerical Aperture | 0.14 - 0.18 |
| Mode Field Diameter (μm) | 3.7 - 5.0 @830nm |
| Attenuation (dB/km) | ≤5 @830nm |
| Beat-Length (mm) @633 | ≤1.0 |
| Proof Test (%) | 1 or 2 (100 or 200 kpsi) or greater upon request |
| Cladding Diameter (μm) | 80 ± 1 |
| Core Cladding Concentricity (μm) | ≤1.0 |
| Coating Diameter (μm) | 165 ± 5 |
| Coating Type | Dual Layer Acrylate |
| Operating Temperature (°C) | -55 to +85 |
Resources
Technical Bulletins File pm_gyro_fiber_md05.9.pdf