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Optical Engineering

Simple infrared Fourier transform spectrometer adapted to low light level and high-speed operation
Author(s): Philippe Voge; Jerome Primot
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Paper Abstract

The authors present a new concept for a spectrometer adapted to low light level, high-speed operation and low spectral resolution. It is based on a spatially modulated Mach-Zehnder Fourier transform interferometer, with a new arrangement to record the fringes. The interferogram is sensed by the use of a focal plane array tilted with respect to the fringe axis. This technique allows oversampling of the fringe pattern, which eliminates spectral aliasing that occurs with the conventional configuration. It extends the free spectral and dynamic range.

Paper Details

Date Published: 1 September 1998
PDF: 8 pages
Opt. Eng. 37(9) doi: 10.1117/1.601769
Published in: Optical Engineering Volume 37, Issue 9
Show Author Affiliations
Philippe Voge, ONERA (France)
Jerome Primot, ONERA (France)

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