Coherent's PLMA-YDF-25/250-M fibers are optimized for laser and amplifier systems requiring low splice loss and superior beam quality. With a 25 µm core diameter and a 250 µm cladding diameter, the M version ensures seamless integration with active fibers, delivering high pump absorption and robust performance. The NuCOAT fluoroacrylate coating enhances environmental durability, making these fibers ideal for industrial, medical, and defense applications.
Parameter | PLMA-YDF-25/250-M |
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Optical Specifications | |
Operating Wavelength | 1060 - 1115 nm |
Core NA | 0.065 ± 0.005 |
First Cladding NA | ≥ 0.46 |
Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
Cladding Absorption | 5.25 dB/m near 975 nm |
Birefringence | nominal 2 x 10⁻⁴ |
Geometrical & Mechanical Specifications | |
Cladding Diameter | 255.0 ± 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 fluoracrylate |
Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |