Ratiometric fibre—optic sensor utilizing a fused bicomcally tapered coupler.

André Booysen

doi:10.1117/12.2321926

1 December 1991 Ratiometric fibre—optic sensor utilizing a fused bicomcally tapered coupler.

André Booysen

Proceedings Volume 1584, Fiber Optic and Laser Sensors IX; (1991) https://doi.org/10.1117/12.2321926
Event: OE Fiber, 1991, Boston, MA, United States

Abstract

It was found experimentally that the coupling ratio of a fused biconically tapered coupler changes when the coupler is subjected to an axially applied mechanical strain. A new type of ratiometric fibre—optic sensor, based on this principle, was developed. Due to analog signal conditioning, this sensor is insensitive to fluctuations in the light source power and has an output that is directly proportional to the measurand. Temperature and strain sensors with a linear output were realized by employing this method.

Citation Download Citation

André Booysen "Ratiometric fibre—optic sensor utilizing a fused bicomcally tapered coupler.", Proc. SPIE 1584, Fiber Optic and Laser Sensors IX, (1 December 1991); https://doi.org/10.1117/12.2321926

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