Coherent Large Mode Area (LMA) Yb-doped fibers are optimized for laser and amplifier systems requiring low splice loss and high beam quality. With a 25 µm core diameter and a 250 µm cladding diameter, the M version is precision-matched to passive counterparts, ensuring seamless integration and enhanced performance. The NuCOAT fluoroacrylate coating ensures durability and reliable operation in industrial, medical, and defense applications.
| Parameter | LMA-YDF-25/250-M |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1060 - 1115 nm |
| Core NA | 0.065 ± 0.005 |
| Core Attenuation | ≤ 30.0 dB/km @ 1200 nm |
| Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
| Cladding Absorption | 4.80 dB/m near 975 nm |
| Cladding NA | ≥ 0.46 |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 250.0 ± 5.0 μm |
| Core Diameter | 25.0 ± 1.5 μm |
| Coating Diameter | 395.0 ± 15.0 μm |
| Core Clad Offset | ≤ 2.00 μm |
| Coating Material | NuCOAT fluoroacrylate |
| Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |