A Simple Reflectometer Configured To Sense Temperature

J. P. Legendre

doi:10.1117/12.949808

3 January 1986 A Simple Reflectometer Configured To Sense Temperature

J. P. Legendre

Proceedings Volume 0566, Fiber Optic and Laser Sensors III; (1986) https://doi.org/10.1117/12.949808
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

The standard fibre optic reflectometer appears to have been overlooked as a means of making a fibre optic temperature sensor in favor of other more complex arrangements. The present sensor uses temperature induced variations of the refractive index of a captive volume of liquid at the end of an optical communications grade multimode fibre. The geometry of the sensing fibre tip is as simple as it is possible to imagine i.e. a flat, cleaved face, normal to the fibre axis. A short theoretical basis of the physics of the sensor will be presented. Systems constructed in both the 840 nm and 1300 nm wavelength regions are discussed. The linearity, noise characteristics, sensitivity, time response, temperature range and stability of these sensors have been examined.

Citation Download Citation

J. P. Legendre "A Simple Reflectometer Configured To Sense Temperature", Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); https://doi.org/10.1117/12.949808

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