%0 Journal Article
%T High-Visibility Photonic Crystal Fiber Interferometer as Multifunctional Sensor
%A G. A. C¨¢rdenas-Sevilla
%A Fernando C. F¨¢vero
%A Joel Villatoro
%J Sensors
%D 2013
%I MDPI AG
%R 10.3390/s130202349
%X 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 ¡Á 10 £¿5.
%K interferometry
%K modal interference
%K photonic crystal fibers
%K refractive index sensors
%K liquid level sensors
%U http://www.mdpi.com/1424-8220/13/2/2349