TOP® UV, TOP® NIR Quartz/Quartz FiberTOP® UV, TOP® NIR Quartz/Quartz Fiber
Experience excellent performance and outstanding fiber characteristics from the ultraviolet to the near-infrared with TOPRAYS TOP® UV/NIR fibers. They are available in a range of core diameters and assembly formats and can be customized to your specific application needs.
Wavelength · Numerical Aperture (NA)
| Wavelength | Numerical Aperture (NA) |
|---|---|
| TOP® UV 200 – 1100 nm · TOP® NIR 300 – 2600 nm | Low 0.12 ± 0.02 · Standard 0.22 ± 0.02 · High 0.28 ± 0.02 or customised |
Advantages
Pure synthetic fused silica glass core
High laser damage resistance
Multimode, step-index profile
Special jackets available for high-temperature, high-vacuum and highly corrosive chemical environments
Very low NA spread
Biocompatible materials
Can be sterilised with ethylene oxide (ETO) and similar methods
Construction
Silica glass core · fluorine-doped silica cladding · buffer layer (where applicable: silicone, hard polymer) · jacket
Jacket Options
| Jacket | Operating Temperature |
|---|---|
| Polyimide | -190 to +350 °C |
| ETFE（Tefzel®） | -40 to +150 °C |
| Nylon | -40 to +100 °C |
| Acrylate | -40 to +85 °C |
| DuPont Hytrel® 7246 | -40 to +140 °C |
| Acrylate DeSolite® DF-0009 | -40 to +150 °C |
| PFA Fluon® | -200 to +260 °C |
Technical Parameters
| Parameter | Specified value |
|---|---|
| OH Content Options | Available on request with < 0.25 ppm and < 0.1 ppm specifications |
| Operating Temperature | -200 to +350 °C |
| Core Diameter | Available from 20 to 3000 µm |
| Standard Core/Cladding Ratio | 1 : 1.04 | 1 : 1.06 | 1 : 1.1 | 1 : 1.15 | 1 : 1.2 | 1 : 1.25 | 1 : 1.4 or customised |
| OH Content | TOP® UV: high (> 700 ppm) · TOP® NIR: low (< 1 ppm) · OH content < 0.25 ppm and < 0.1 ppm available on request |
| Standard Proof Test | 100 kpsi (nylon, ETFE, acrylate jackets) | 70 kpsi (polyimide jacket) |
| Minimum Bend Radius | 50 × cladding diameter (short-term mechanical stress) · 150 × core diameter (high-power laser use) |
Attenuation
The charts below summarise the attenuation at different wavelengths (right-hand scale: transmission per metre):
Optional Customisation
UV solarisation resistance (hermetic carbon coating)
Metal coating for enhanced heat resistance
Broad spectrum (TOP® Broadband)
Applications
The preferred choice for spectroscopy, medical diagnostics, medical technology and laser delivery systems, among other applications.
