Ultra Low Straylight Fiber Optic Spectrometer: AvaSpec-ULS

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The AvaSpec-ULS Ultra Low Straylight Fiber Optic Spectrometer family consists of a revolutionary new optical bench optimized to reduce straylight and increase both mechanical and temperature stability. The new optical bench and spectrometer are available for OEM integration as well as for individual instruments.

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 Ultra Low Straylight Fiber Optic Spectrometer 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 as well as for individual instruments.