Title :
Dual-Core Photonic Crystal Fiber for Hydrostatic Pressure Sensing
Author :
Chen, Daru ; Hu, Gufeng ; Chen, Lingxia
Author_Institution :
Inst. of Inf. Opt., Zhejiang Normal Univ., Jinhua, China
Abstract :
We propose a novel hydrostatic pressure sensor based on a dual-core photonic crystal fiber (DC-PCF). Two solid fiber cores separated by an air hole in the cross-section lead to two independent waveguides inside the DC-PCF which accompany with mode coupling. The mode coupling of two solid fiber cores of the DC-PCF under different hydrostatic pressure is numerically investigated. A pressure sensing system is proposed and performances of the pressure sensor have been numerically investigated. Our calculations show a hydrostatic pressure sensor based on a 10-cm DC-PCF has a sensing range from 0 to 1000 MPa and a sensitivity of 3.47 pm/MPa.
Keywords :
fibre optic sensors; holey fibres; numerical analysis; photonic crystals; pressure sensors; dual-core photonic crystal fiber; hydrostatic pressure sensing; mode coupling; optical waveguides; pressure 0 MPa to 1000 MPa; pressure sensor; solid fiber cores; Couplings; Optical fiber couplers; Optical fiber sensors; Optimized production technology; Photonic crystal fibers; Dual-core (DC); hydrostatic pressure sensor; mode coupling; photonic crystal fiber (PCF);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2170194
