Investigation and application of the frustrated-total-internal-reflection phenomenon in optical fibers
- 1 April 1997
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 36 (10) , 2183-2187
- https://doi.org/10.1364/ao.36.002183
Abstract
A detailed investigation of the frustrated-total-internal-reflection (FTIR) phenomenon in silica-glass-based optical fibers and its application to simple intensity-modulated strain and pressure sensors is presented. Such sensors may be readily fabricated with silica-based fibers and can be easily modified with sapphire fibers for high-temperature industrial applications where conventional silica-based fiber sensors are not feasible. We present the all-fiber FTIR sensor and show good correlation between theory and experiment. We also present results for the design and implementation of a prototype FTIR-based fiber pressure sensor.Keywords
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