Coherent FUD-4250 fibers are optimized for applications in the 1550–1625 nm wavelength range. These fibers offer low attenuation, robust mechanical reliability, and precise geometrical tolerances for high-performance optical systems.
| Parameter | FUD-4250 |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1550–1625 nm |
| Mode Field Diameter (Gaussian) | 11.5–12.5 µm @ 1550 nm |
| Cutoff | 1450–1520 nm |
| Cladding Attenuation | 0–1.5 dB/km @ 1550 nm |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 124–126 µm |
| Coating Diameter | 230–260 µm |
| Prooftest Level | ≥ 100 kpsi |