Coherent FUD-3420 fibers are designed for high-attenuation applications at 1060 nm while maintaining low attenuation at 915–980 nm. This fiber is optimized for distributed sensing and other specialty applications requiring specific wavelength performance.
| Parameter | FUD-3420 |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 900–1200 nm |
| Core NA | 0.11 |
| Mode Field Diameter (Gaussian) | 6.8–8.8 µm @ 1060 nm |
| Cutoff | 800–910 nm |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 129–131 µm |
| Coating Diameter | 230–260 µm |
| Prooftest Level | 100–120 kpsi |