Apr-09
27
Avantes
www.avantes.com
2.5
AvaSpec-2048L Fiber Optic Spectrometer with larger pixels
AvaSpec-2048L
The AvaSpec-2048L Fiber Optic Spectrometer
has been added to the Avantes product line
since January 2009 and has many technical
specifications comparable to the standard
AvaSpec-2048. The difference is the CCD
detector, the AvaSpec-2048L uses the Sony
ILX511 detector whereas the AvaSpec-2048 uses
the ILX554B detector.
The AvaSpec-2048L is very useful for
applications where larger fiber entrance
diameter needs to be projected on the larger
CCD detector pixels of 14x200µm height.
The AvaSpec-2048L also has a better signal to noise performance and shows no peak inversion and
dark increase at the end of the detector array at longer integration times. The FWHM resolution of
the 2048L is ca 20% less good than for the standard 2048 and also non-linearity is a little less, so a
NL-calibration per channel is recommended.
All options for the AvaSpec-2048 are also available on the AvaSpec-2048L.
Technical Data
Spectrometer
AvaSpec-2048-USB2
AvaSpec-2048L-USB2
Detector
Sony ILX-554B
Sony ILX-511
Pixel size
14 X 56 µm
14 x 200µm
Sensitivity (
V/lx.s
)
240
200
Sensitivity (AvaLight-HAL, 8 µm fiber)
counts/µW per ms integration time
20,000
20,000
Peak Wavelength
550 nm
450 nm
Signal/Noise
160:1
300:1
Dark Noise
40
24
Ext trigger delay
1.3µsec
3.0µsec
Ordering Information
AvaSpec-2048L-USB2
Fiber Optic Spectrometer, 75 mm Avabench, 2048 pixel 14x200µm CCD
detector, USB powered high speed USB2 interface, incl. AvaSoft-Basic, USB
interface cable, specify grating, wavelength range and options
