Coherent High-Performance Matched (M Plus) Large Mode Area (LMA) Yb-doped fibers are optimized for high-power laser systems requiring exceptional beam quality and low splice loss. Featuring a 25 µm core diameter and a 400 µm cladding diameter, these fibers provide enhanced optical and mechanical tolerances. The NuCOAT fluoroacrylate coating ensures superior environmental durability, making these fibers ideal for industrial, medical, and defense applications under demanding conditions.
Parameter | LMA-YDF-25/400-M-Plus |
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Optical Specifications | |
Operating Wavelength | 1060 - 1115 nm |
Core NA | 0.065 ± 0.005 |
Mode Field Diameter | 19.2 ± 1.2 μm @ 1060 nm |
Core Attenuation | ≤ 30.0 dB/km @ 1300 nm |
Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
Cladding Absorption | 0.57 ± 0.07 dB/m at 915 nm |
Cladding NA | ≥ 0.46 |
Geometrical & Mechanical Specifications | |
Cladding Diameter | 400.0 ± 7.0 μm |
Core Diameter | 25.0 ± 1.5 μm |
Coating Diameter | 500.0 ± 15.0 μm |
Core Clad Offset | ≤ 1.20 μm |
Coating Material | NuCOAT fluoroacrylate |
Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |