30 November 1994 Use of a grating interferometer for the demodulation of white-light interferometric sensors
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Proceedings Volume 2341, Interferometry '94: Interferometric Fiber Sensing; (1994) https://doi.org/10.1117/12.195538
Event: International Conference on Interferometry '94, 1994, Warsaw, Poland
In order to demodulate optical fiber interferometric sensors in the coherence multiplexing scheme it is worthwhile using static interferomers. Measurement of a physical parameter is obtained by matching the optical path difference (OPD) of each interferometric sensor with a receiver. An attractive solution consists in using grating interferometer as a demodulator. Indeed, it permits one to record correlation peaks (each one corresponding to a sensor) on a photodiode array, thus making demultiplexing easier. On the other hand, it is possible to record only the peak envelope if the grating interferometer is adjusted in a well defined configuration. In this paper we concern ourselves with the theoretical determination of the conditions needed to simplify calculations and interpretation of the experimental results.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hassan Akhouayri, Hassan Akhouayri, Hugues Giovannini, Hugues Giovannini, Serge J. Huard, Serge J. Huard, Michel Lequime, Michel Lequime, "Use of a grating interferometer for the demodulation of white-light interferometric sensors", Proc. SPIE 2341, Interferometry '94: Interferometric Fiber Sensing, (30 November 1994); doi: 10.1117/12.195538; https://doi.org/10.1117/12.195538

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