Optical fiber-based Fabry-Perot sensor for acetone sensing

Karvan Kaushal; Bhargab Das

doi:10.1117/12.2633299

4 October 2022 Optical fiber-based Fabry-Perot sensor for acetone sensing

Karvan Kaushal, Bhargab Das

Proceedings Volume 12219, Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2022; 122190B (2022) https://doi.org/10.1117/12.2633299
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

We propose and experimentally demonstrate an optical fiber-based Fabry-Perot (FP) sensor for acetone vapor sensing. The FP cavity is formed with Polystyrene (PS) deposited at the end facet of a cleaved fiber. The interference spectrum is generated due to reflections from the fiber-polystyrene and polystyrene-air interfaces. The sensing mechanism of the sensor relies on the change in optical path length due to the interaction of acetone with the sensing cavity which ultimately changes the phase-matching condition of interference. Pronounced change in the interferometer spectral response is observed with respect to the change in concentration of acetone vapor. The developed sensor can be used in the application of breath VOC monitoring.

Conference Presentation

Citation Download Citation

Karvan Kaushal and Bhargab Das "Optical fiber-based Fabry-Perot sensor for acetone sensing", Proc. SPIE 12219, Polymer Optics and Molded Glass Optics: Design, Fabrication, and Materials 2022, 122190B (4 October 2022); https://doi.org/10.1117/12.2633299

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