Sensors 2013, 13(2), 2349-2358; doi:10.3390/s130202349
Article

High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor

Received: 31 December 2012; Accepted: 4 February 2013 / Published: 8 February 2013
(This article belongs to the Special Issue Photonic Crystal Sensors)
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.
Abstract: 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.
Keywords: interferometry; modal interference; photonic crystal fibers; refractive index sensors; liquid level sensors
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MDPI and ACS Style

Cárdenas-Sevilla, G.A.; Fávero, F.C.; Villatoro, J. High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor. Sensors 2013, 13, 2349-2358.

AMA Style

Cárdenas-Sevilla GA, Fávero FC, Villatoro J. High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor. Sensors. 2013; 13(2):2349-2358.

Chicago/Turabian Style

Cárdenas-Sevilla, G. A.; Fávero, Fernando C.; Villatoro, Joel. 2013. "High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor." Sensors 13, no. 2: 2349-2358.

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