Datasheet
Components & Accessories
PLMA-YDF-20/400-M Plus, High-Performance Matched Yb-Doped Double Clad Optical Fiber
Coherent's PLMA-YDF-20/400-M Plus fibers are engineered for high-power laser systems requiring exceptional beam quality and seamless integration. Featuring a 20 µm core diameter and a 400 µm cladding diameter, these fibers deliver high pump absorption and low splice loss. The M Plus design ensures enhanced optical and mechanical tolerances. The NuCOAT fluoroacrylate coating provides superior environmental durability, making these fibers suitable for industrial, medical, and defense applications under demanding conditions.
Features
- Matched M Plus design - Optimized for low splice loss
- NuCOAT fluoroacrylate coating - Provides superior environmental durability
- Enhanced optical and mechanical tolerances - Ensures reliable performance
- Proof tested to > 100 kpsi - Guarantees long-term reliability
- RoHS compliant
Applications
- High-power CW and pulsed lasers
- Industrial laser systems
- Medical laser systems
- Defense applications
Datasheet
| Parameter | PLMA-YDF-20/400-M-Plus |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1015 - 1115 nm |
| Core NA | 0.065 ± 0.005 |
| Mode Field Diameter | 16.70 ± 1.00 μm @ 1060 nm |
| First Cladding NA | ≥ 0.46 |
| Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
| Cladding Absorption | 0.5 ± 0.1 dB/m at 915 nm |
| Birefringence | nominal 4 x 10⁻⁴ |
| Slope Efficiency | > 70.0%@ 915 nm |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 405.0 ± 7.0 μm |
| Core Diameter | 20.0 ± 1.5 μm |
| Coating Diameter | 550.0 ± 15.0 μm |
| Core Clad Offset | ≤ 1.20 μm |
| Coating Material | NuCOAT fluoracrylate |
| Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |