Low-cost refractive index and strain sensor based on tapered fibers

In this paper, biconical tapered fibers are used to carry out sensing in a simple and effective way by using an incoherent source and a power meter. This approach reduces the cost and complexity of traditional schemes based on tunable lasers while providing similar performance. Refractive index and...

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Bibliographic Details
Published in:Optics communications 2016-02, Vol.361, p.99-103
Main Authors: Mas, Sara, Martí, Javier, Monzón-Hernández, David, Palací, Jesús
Format: Article
Language:English
Subjects:
Fiber design and fabrication
Fiber measurements
Fiber optics sensors
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Summary:In this paper, biconical tapered fibers are used to carry out sensing in a simple and effective way by using an incoherent source and a power meter. This approach reduces the cost and complexity of traditional schemes based on tunable lasers while providing similar performance. Refractive index and strain sensing measurements are presented and their performance discussed. •A simple and low-cost sensing approach is proposed by means of tapered fibers and a broadband source.•Traditional approach using a tunable source is also explained for comparison purposes.•Both refractive index and strain sensing measurements are presented.•Power stability evolution of the two approaches is also analyzed.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2015.10.025