Datasheet
Components & Accessories
LMA-GDF-25/250-M, Large Mode Area Matched Passive Double Clad Fiber
Coherent Large Mode Area (LMA) matched passive double clad fibers are specifically designed for high power laser and amplifier systems. These fibers feature a 25 µm core diameter and a 250 µm cladding diameter, ensuring high coupling efficiency and low splice loss. The precision-matched (M) version enhances compatibility with active fibers and ensures optimal performance. The NuCOAT fluoroacrylate coating provides superior durability and long-term reliability, making these fibers ideal for demanding industrial, medical, and defense applications.
Features
- Precision-matched design - Reduces splice loss
- NuCOAT fluoroacrylate coating - Ensures long-term durability
- Optimized for high power - Suitable for industrial laser systems
- Proof tested to > 100 kpsi - Reliable performance
- RoHS compliant
Applications
- High power fiber lasers
- Material processing
- Defense and medical laser systems
Datasheet
| Parameter | LMA-GDF-25/250-M |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1060 - 1600 nm |
| Core NA | 0.065 ± 0.005 |
| 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 | 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) |
| Clad Non-Circularity | ≤ 0.5 % |