The AvaSpec-ULS family consists of a revolutionary new optical bench optimized to reduce straylight and increase both mechanical and temperature stability. The new optical bench has a dual internal modestripper along with multiple CPC's (compound Parabolic Concentrators) to further reduce straylight levels down to 0.04%, an improvement of a factor of 2.5 over the standard AvaSpec-2048. Along with the straylight improvement the new optical bench design features a much higher rigidity resulting in a factor of 10 decrease in strain sensitivity caused by microbending and temperature fluctuations.
The ULS optical bench is available for the following detector types 1024, 2048, 2048L, 3648 and 2048x14 and has the same dimensions as the standard 75 mm Avabench.
The low straylight performance of the AvaSpec-ULS is extremely useful in applications where high absorbance parameters need to be measured, such as those associated with high chemical concentrations, high optical density optics or long optical path lenghts. The new optical bench and spectrometer are available for OEM intergration as well as for individual instruments.
Technical Data
| Spectrometer |
AvaSpec-2048-USB2 |
AvaSpec-ULS2048-USB2 |
| Typ. Straylight for UA, VA, IA gratings |
0.5% |
0.1% |
| Typ. Straylight for UB, VB, IB gratings |
0.1% |
0.04% |
| Typ. Straylight for UC, VC, IC gratings |
0.1% |
0.04% |
| Typ. Straylight for D, E, F gratings |
0.1%
|
0.02-0.07% |
| Typ. Temp wavelength shift |
0.15 Pixel/°C |
0.1 Pixel/°C |
| Typ. Temp intensity change (CDD on) |
1 %/°C |
0.5 %/°C |
| Typ. Microbending* Sensitivity |
3 %/N |
0.3 %/N |
| Weight |
716 grams |
855 grams |
*Microbending is defined as the signal change due to the average external force in vertical direction applied to the SMA connector
Ordering Information
| AvaSpec-ULS1024-USB2 |
Ultra Low Straylight Fiber Optic Spectrometer, 1024 pixel CMOS detector, specify grating, wavelength range and options |
| AvaSpec-ULS2048-USB2 |
Ultra Low Straylight Fiber Optic Spectrometer, 2048 pixel 14x56µm CCD detector, specify grating, wavelength range and options |
| AvaSpec-ULS2048L-USB2 |
Ultra Low Straylight Fiber Optic Spectrometer, 2048 pixel 14x200µm CCD detector, specify grating, wavelength range and options |
| AvaSpec-ULS3648-USB2 |
Ultra Low Straylight Fiber Optic Spectrometer, 3648 pixel CCD detector, specify grating, wavelength range and options |
| AvaSpec-ULS2048x14-USB2 |
Ultra Low Straylight Fiber Optic Spectrometer, 2048x14 pixel backthinned CCD detector, specify grating, wavelength range and options |
|
Products