28
Apr-09
Avantes
www.avantes.com
2.6
AvaSpec-ULS2048 Ultra Low Straylight Fiber Optic Spectrometer
AvaSpec-ULS2048
The AvaSpec-ULS2048 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 flutuations.
The new optical bench is integrated into the new AvaSpec-ULS2048, and is available for all A, B, and
C gratings and for all other options that the standard AvaSpec-2048 has
The low straylight performance of the AvaSpec-ULS2048 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 lengths. The new optical bench and
spectrometer are available for OEM integration in other systems as well as for purchase as 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. 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
*Microbending is defined as the signal change due to the average external force in vertical direction applied to
the SMA connector.
Ordering Information
AvaSpec-ULS2048-USB2
Ultra Low Straylight Fiber Optic Spectrometer, 75 mm Avabench, 2048
pixel 14x56µm CCD detector, USB powered high speed USB2 interface,
incl. AvaSoft-Basic, USB interface cable, specify grating (A-C),
wavelength range and options
