Coherent FUD-3564 fibers are polarization-maintaining fibers optimized for high-power applications at 1550 nm. These fibers feature low attenuation, robust mechanical tolerances, and reliable performance in extreme conditions.
| Parameter | FUD-3564 | 
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1500–1620 nm | 
| Core NA | 0.095 | 
| Mode Field Diameter (Gaussian) | 13.5–14.7 µm @ 1550 nm | 
| Cutoff | 1400–1500 nm | 
| Cladding Attenuation | 0–15 dB/km @ 1095 nm | 
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 124–126 µm | 
| Coating Diameter | 230–260 µm | 
| Prooftest Level | 100–120 kpsi |