Title :
Tapered photonic crystal fiber based Mach-Zehnder interferometer for enhanced refractive index sensing
Author :
Farid Ahmed;Martin B. G. Jun
Author_Institution :
Dept. of Mechanical Eng., University of Victoria, Victoria, Canada
Abstract :
Mach-Zehnder interferometer (MZI) based fiber-optic refractive index (RI) sensor is constructed by fusion splicing a photonic crystal fiber (PCF) between two regular single mode fibers (SMF). Using a custom made tapering equipment; the PCF is then tapered down to 60 μm that significantly enhances its ambient index sensitivity. The sensor shows RI sensitivity of 252.50 nm/RIU for RI range of 1.332 to 1.363, 475.50 nm/RIU for RI range of 1.364 to 1.392 and 1141.10 nm/RIU for RI range of 1.393 to 1.406, respectively.
Keywords :
"Sensitivity","Optical fiber sensors","Refractive index","Splicing","Optical interferometry","Photonic crystal fibers"
Conference_Titel :
SENSORS, 2015 IEEE
DOI :
10.1109/ICSENS.2015.7370524
