Coherent Large Mode Area (LMA) high-performance passive double clad fibers are specifically designed for high-power laser systems. With a 30 µm core diameter and a 250 µm cladding diameter, the M Plus version offers tighter optical and geometric tolerances to optimize beam quality and reduce splice loss. The advanced NuCOAT fluoroacrylate coating enhances durability, ensuring reliable performance under demanding environmental conditions.
| Parameter | LMA-GDF-30/250-M-Plus |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1060 - 1600 nm |
| Core NA | 0.062 ± 0.005 |
| Mode Field Diameter | 21.5 ± 1.5 μm @ 1060 nm |
| Core Attenuation | ≤ 30.0 dB/km @ 1200 nm |
| First Cladding NA | 0.46 |
| Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 247.0 ± 3.0 μm |
| Core Diameter | 30.0 ± 2.0 μm |
| Coating Diameter | 395.0 ± 15.0 μm |
| Core Clad Offset | ≤ 1.20 μm |
| Coating Material | NuCOAT fluoroacrylate |
| Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |
| Clad Non-Circularity | ≤ 0.5 % |