Coherent Optical Fiber Sensing Based on a Frequency Shifting Loop

Vincent Billault; Vincent Billault; Pierre Travers; Pierre Travers; Guillaume Arpison; Guillaume Arpison; Vincent Crozatier; Vincent Kemlin; Loïc Morvan; Daniel Dolfi; Hugues Guillet de Chatellus

doi:10.1364/SENSORS.2021.STu2B.7

OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES)
OSA Technical Digest (Optica Publishing Group, 2021),
paper STu2B.7
•https://doi.org/10.1364/SENSORS.2021.STu2B.7

Coherent Optical Fiber Sensing Based on a Frequency Shifting Loop

Vincent Billault, Pierre Travers, Guillaume Arpison, Vincent Crozatier, Vincent Kemlin, Loïc Morvan, Daniel Dolfi, and Hugues Guillet de Chatellus

Optical Sensors 2021

Washington, DC United States
19–23 July 2021
ISBN: 978-1-943580-90-3

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Optical Fiber Sensors V (STu2B)

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V. Billault, P. Travers, G. Arpison, V. Crozatier, V. Kemlin, L. Morvan, D. Dolfi, and H. G. de Chatellus, "Coherent Optical Fiber Sensing Based on a Frequency Shifting Loop," in OSA Optical Sensors and Sensing Congress 2021 (AIS, FTS, HISE, SENSORS, ES), S. Buckley, F. Vanier, S. Shi, K. Walker, I. Coddington, S. Paine, K. Lok Chan, W. Moses, S. Qian, P. Pellegrino, F. Vollmer, G. , J. Jágerská, R. Menzies, L. Emmenegger, and J. Westberg, eds., OSA Technical Digest (Optica Publishing Group, 2021), paper STu2B.7.

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Abstract

An optical fiber sensing system with a frequency shifting loop monitor phase perturbations applied to a transducer in an optical fiber. A sensitivity below 4 µrad/Hz^(1/2) in a 20 kHz – 2 MHz bandwidth is obtained.

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