Coherent Large Mode Area (LMA) polarization-maintaining Yb-doped fibers are designed for laser and amplifier systems requiring linearly polarized output. With a 25 µm core diameter and a 250 µm cladding diameter, the VIII version ensures high pump absorption and robust beam quality. PANDA-style stress rods enhance birefringence, ensuring reliable polarization maintenance. The NuCOAT fluoroacrylate coating provides superior environmental durability and long-term reliability, making these fibers suitable for industrial, medical, and defense applications.
| Parameter | LMA-YDF-25/250-VIII |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1060 - 1115 nm |
| Core NA | 0.060 ± 0.010 |
| 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 ± 10.0 μm |
| Core Diameter | 25.0 ± 2.5 μm |
| Coating Diameter | 400.0 ± 20.0 μm |
| Coating Material | Low Index Acrylate |
| Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |