Datasheet
Components & Accessories
SM-GDF-6/125-M, Matched Passive Double Clad Optical Fiber
Coherent's SM-GDF-6/125-M fibers are optimized for passive applications requiring low splice loss and exceptional beam quality. With a 6 µm core diameter and a 125 µm cladding diameter, the matched (M) design ensures seamless integration with active fibers. The NuCOAT fluoroacrylate coating provides superior environmental durability and long-term reliability, making these fibers suitable for industrial, medical, and defense applications under challenging conditions.
Features
- Matched (M) design - Ensures low splice loss
- NuCOAT fluoroacrylate coating - Provides superior environmental durability
- Optimized for passive components - Maintains beam quality
- Proof tested to > 100 kpsi - Guarantees long-term reliability
- RoHS compliant
Applications
- Passive fiber laser components
- Medical laser systems
- Industrial instrumentation
- Defense laser systems
Datasheet
| Parameter | SM-GDF-6/125-M |
|---|---|
| Optical Specifications | |
| Operating Wavelength | 1530 - 1625 nm |
| Core NA | 0.18 |
| Mode Field Diameter (Gaussian) | 6.8 ± 0.8 µm @ 1550 nm 6.8 ± 0.8 μm @ 1550 nm |
| Cutoff | 1440 ± 80 nm |
| Core Attenuation | ≤ 6.00 dB/km @ 1550 nm |
| Cladding Attenuation | ≤ 15.0 dB/km @ 1095 nm |
| First Cladding NA | ≥ 0.460 |
| Geometrical & Mechanical Specifications | |
| Cladding Diameter | 125.0 ± 1.0 µm 125.0 ± 1.0 μm |
| Core Diameter | 6 μm |
| Coating Diameter | 245.0 ± 10.0 μm |
| Core/Clad Offset | ≤ 0.50 μm |
| Coating Concentricity | < 5.0 μm |
| Prooftest Level | ≥ 100 kpsi (0.7 GN/m²) |