High-visibility photonic crystal fiber interferometer as multifunctional sensor


A photonic crystal fiber (PCF) interferometer that exhibits record fringe contrast (~40 dB) is demonstrated along with its sensing applications. The device operates in reflection mode and consists of a centimeter-long segment of properly selected PCF fusion spliced to single mode optical fibers. Two identical collapsed zones in the PCF combined with its modal properties allow high-visibility interference patterns. The interferometer is suitable for refractometric and liquid level sensing. The measuring refractive index range goes from 1.33 to 1.43 and the maximum resolution is ~1.6 × 10-5.

Publication DOI: https://doi.org/10.3390/s130202349
Divisions: College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Electrical and Electronic Engineering
Additional Information: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Uncontrolled Keywords: Interferometry,liquid level sensors,modal interference,photonic crystal fibers,refractive index sensors,Electrical and Electronic Engineering,Atomic and Molecular Physics, and Optics,Analytical Chemistry,Biochemistry
Publication ISSN: 1424-8220
Full Text Link: http://www.mdpi ... -8220/13/2/2349
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Special issue
Published Date: 2013-02-08
Authors: Cárdenas-Sevilla, G.A.
Fávero, Fernando C.
Villatoro, Joel



Version: Published Version

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