TITLE:
Design of a Concentration Sensor Based on Photonic Crystal Fiber Placed between Two Single Mode Fibers
AUTHORS:
Jitesh Kumar Verma, Sonali Prava Dash, Sukanta Kumar Tripathy
KEYWORDS:
Concentration Sensor; FDTD Method; Photonic Crystal Fiber
JOURNAL NAME:
Soft Nanoscience Letters,
Vol.3 No.4A,
December
6,
2013
ABSTRACT: We demonstrate the use of photonic crystal fiber (PCF) joined in between two single mode fibers (SMF) as a concentration sensor. To realize this, one micrometer length PCF of hexagonal lattice is sandwiched between two SMF having one micrometer length each. To maximize the coupling between SMF and PCF, the core diameters are made equal. Then the output from a given input through this structure is analyzed with respect to different concentrations in the air holes of PCF using Finite Difference Time Domain (FDTD) method. It is found that the variation of electric field intensity at the output is linear with respect to concentration of alcohol.