High Speed Thermometry Utilising Multiplexed Fibre Fabry-Perot Interferometers

F. Farahi; J.D. C. Jones; D. A. Jackson

doi:10.1117/12.942510

23 March 1988 High Speed Thermometry Utilising Multiplexed Fibre Fabry-Perot Interferometers

F. Farahi, J.D. C. Jones, D. A. Jackson

Proceedings Volume 0838, Fiber Optic and Laser Sensors V; (1988) https://doi.org/10.1117/12.942510
Event: Cambridge Symposium on Fiber Optics and Integrated Optoelectronics, 1987, Cambridge, MA, United States

Abstract

The results of an investigation into the temporal response of fibre optic interfero-meters to heat pulses is presented. A rise time of < 2.5 x 10^-4 s was determined where an electric arc was used to heat the fibre cladding. A response time of < 10-4 s was observed when an optical technique was used to directly heat the fibre core. These measurements were performed with a new remote optical configuration which could be used as a miniaturised sensing element. The feasibility of multiple measurement with this new fibre Fabry-Perot interferometer was studied, and two multiplexed sensing systems based on frequency division and coherence multiplexing are described.

Citation Download Citation

F. Farahi, J.D. C. Jones, and D. A. Jackson "High Speed Thermometry Utilising Multiplexed Fibre Fabry-Perot Interferometers", Proc. SPIE 0838, Fiber Optic and Laser Sensors V, (23 March 1988); https://doi.org/10.1117/12.942510

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