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

High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor

1 Corning Cable Systems S.A. de C.V. Reynosa Plant, Cd. Reynosa, Tamaulipas 88730, Mexico 2 Institute of Photonic Technology, Albert Einstein Str. 9, Jena 07745, Germany 3 Aston Institute of Photonic Technologies, Aston University, Aston Triangle, Birmingham B4 7ET, UK
* Author to whom correspondence should be addressed.
Received: 31 December 2012; Accepted: 4 February 2013 / Published: 8 February 2013
(This article belongs to the Special Issue Photonic Crystal Sensors)
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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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