A miniature spectrometer offers ultralow stray light

The new Avabench-75-ULS optical bench for the AvaSpeck family of fiber-optic spectrometers has a dual, internal modestripper along with multiple compound-parabolic concentrators to further reduce stray-light levels to less than 0.04% The new optical-bench design also features much higher rigidity, resulting in a factor of 20 decrease in strain sensitivity caused by microbending. The new optical bench is integrated into the AvaSpec 2046-USL, which is available in a variety of slit and grating configurations covewring wavelengths from 200 to 1,100 nm, and features a 2,048-pixel detector array for high-resolution applications. Hall 5.1, Stand J17. — Avantes, Eerbeek, Netherlands
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