silica fibers CCR 1.06 (Low OH)
Aluminum-coated step index multimode optical fibers (Core/Clad Ratio 1.06) have all the benefits of silica-silica fibers. Additional significant improvements include increased mechanical strength and greater fatigue resistance compared to non-hermetic and polymer-clad fibers (PCS). Their transmittance covers a spectral range of 400 to 2200 nm, and also remains stable in corrosive chemicals that normally react to silica glass. The temperature range is from -196C to +400C . FEUTURES: Greatly enhanced resistance to high power laser radiation. Higher core-to-clad ratio and enlarged NA optimized for coupling to high-energy lasers. Better fiber cooling due to the heat-conducting metal coating. Excellent mechanical strength and flexibility compared to polymer coated fibers. The metal coating can be soldered and will not outgas.
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Aluminum-coated fibers | ОК-600/636AL | ОК-800/848AL | ОК-1000/1060AL |
| Fiber type | MM | MM | MM |
| Index profile | Step | Step | Step |
| Core diameter, µm | 600 ± 12 | 800 ± 15 | 1000 ± 20 |
| Clad diameter, µm | 636 ± 15 | 848 ± 20 | 1060 ± 40 |
| Coating diameter, µm | 830 ± 30 | 1060 ± 40 | 1350 ± 60 |
| Cladding offset, % | < 2 | ||
| Coating offset, % | < 5 | ||
| Attenuation at 800/1300 nm (See grapf Low OH) | the loss spectrum is close to the material loss spectrum | ||
| Wavelength range, nm (See grapf Low OH) | 400 - 2200 | ||
| Coating material | Aluminium | ||
| Core material | Pure syntetic silica (low OH) | ||
| Clad material | Doped silica | ||
| Numerical Aperture (NA) | 0.22 ± 0.02 | ||
| Short-term bending radius | 60 times the fiber diameters | ||
| Long-term bending radius | 120 times the fiber diameters | ||
| Proof test, kpsi | 100 | ||
| Min operating temperature, C | -196 | ||
| Max operating temperature, C | 400 | ||
