AvaSpec optical benches are available with or without one of our electronics boards for integration into customers’ systems. Avantes has developed four types of UV/VIS optical benches, especially for OEM customers. The optical benches AvaBench-75-ULS (used in both StarLine and SensLine), AvaBench-75-MN (CompactLine), AvaBench-75-ULSTEC (SensLine), AvaBench-37.5-HS (SensLine) and AvaBench-100-HSC (SensLine) are Czerny-Turner designs with fibre-optic entrance connectors (standard SMA, others possible), collimating focusing mirrors and a diffraction grating. A choice of different gratings with different dispersions and blaze angles enable applications in the 200 to 1160 nm range.

Our new miniature bench is perfect for OEM integration in existing systems and handheld devices. The high numerical aperture AvaBench-37.5-HS has full mechanical compatibility for mounting holes with the AvaBench-75-ULS, which makes it convenient for OEM customers to upgrade to a higher-throughput optical bench.

Wavelength ranges, resolution tables, detector specifications, and AvaBench options can be found in the instrument page corresponding to each spectrometer type. The key specifications of these optical benches are listed in the table below.

All AvaBench optical benches are fully compatible with Avantes’ electronics boards or may be interfaced to customer-specific electronics. Video output is handled through a separate mini-coax cable.

Product Information

AvaBench-75-ULS AvaBench-75-MN AvaBench-37.5-HS AvaBench-100-HSC
Implemented in AvaSpec-ULS2048CL; 4096CL; 2048XL; 2048×64(TEC) AvaSpec-Mini2048CL; 4069CL AvaSpec-HS2048XL AvaSpec-HERO
Focal length 75 mm 75 mm 37.5 mm asymetrical 100 mm
Numerical aperture 0.07 0.07 0.22 0.13
Wavelength range 200-1160 nm 200-1100 nm 200-1160 nm 200-1160 nm
Resolution (FWHM) 0,05-20 nm 0.05-20 nm 1.2-20 nm 0.18-5.50 nm
Stray light 0.04-0.1% 0.2-1% <1% <1%
Gratings Different Different Different Different
Slits 10, 25, 50, 100, 250, 500 µm 10, 25, 50, 100, 250, 500 µm 25, 50, 100, 250, 500 µm 25, 50, 100, 250, 500 µm
Detector HAM 2048CL; 2048XL; 2048×64 HAM 2048CL; 4096CL HAM 2048XL HAM 1024×58
Detector lens UV/VIS UV/VIS-200 n.a. n.a.
Order-sorting filter See options See options See options See options
Dimensions, weight 120 x 91 x 21 mm, 350 g 95 x 68 x 20 mm, 185 g 95 x 152 x 42 mm, 722 g 120 x 125 x 109 mm, 1500 g
AvaBench-75-ULS2048CL-U3 OEM ultra-low stray light optical bench, 75 mm focal length, 2048 pixel CMOS detector. Specify grating, wavelength range and options.
AvaBench-75-ULS4096CL-U3 OEM ultra-low stray light optical bench, 75 mm focal length, 4096 pixel CMOS detector. Specify grating, wavelength range and options
AvaBench-75-ULS2048XL-U3 OEM ultra-low stray light optical bench, 75 mm focal length, 2048XL pixel back-thinned CCD detector. Specify grating, wavelength range and options.
AvaBench-75-ULS2048x64-U3 OEM ultra-low stray light optical bench, 75 mm focal length, 2048×64 pixel back-thinned CCD detector. Specify grating, wavelength range and options.
AvaBench-75-ULS2048x64TEC-U3 OEM ultra-low stray light optical bench, 75 mm focal length, 2048×64 pixel back-thinned cooled CCD detector. Specify grating, wavelength range and options.
AvaBench-75-MN2048CL-U2 OEM miniature optical bench, 75 mm focal length, 2048 pixel CMOS detector. Specify grating, wavelength range and options.
AvaBench-75-MN4096CL-U2 OEM miniature optical bench, 75 mm focal length, 4096 pixel CMOS detector. Specify grating, wavelength range and options.
AvaBench-37.5-HS2048XL-U3 OEM High-sensitivity optical bench, 37.5 mm focal length, 2048XL pixel back-thinned CCD detector. Specify grating, wavelength range and options.
AvaBench-100-HSC 1024x58TEC-U3 OEM High-sensitivity optical bench, 100 mm focal length, 1024×58 pixel TE-cooled back-thinned CCD detector. Specify grating, wavelength range and options.

*A set of defined ranges applies, contact us for assistance

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