Title :
A high sensitivity refractometer based on a partial liquid-filled hollow-core photonic bandgap fiber
Author :
Qian, Wenwen ; Zhao, Chun-liu ; Ni, Kai ; Kang, Juan ; Dong, Xinyong ; Jin, Shangzhong
Author_Institution :
Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China
Abstract :
A novel and high sensitivity refractometer is realized by using a short partial liquid-filled hollow-core photonic bandgap fiber (HC-PBGF). Since the liquid filled into partial air-holes of HC-PBGF forms an asymmetric waveguide structure, the confinement loss of the partial filled HC-PBGF is high sensitive to the refractive index of the filled liquid when the wavelength of the input light on Y polarization mode is fixed at the band gap edge. The proposed refractometer can realize a trace measurement by filling the tested liquid into HC-PBGF partially with 1 mm length and the refractive index sensitivity in theory is as high as 1.5×10-8 at approximately 1.333.
Keywords :
chemical variables measurement; fibre optic sensors; optical fibre polarisation; photonic band gap; refractive index; refractometers; asymmetric waveguide structure; confinement loss; high sensitivity refractometer; partial air hole; partial filled HC-PBGF; partial liquid-filled hollow-core photonic bandgap fiber; polarization mode; refractive index; trace measurement; Optical device fabrication; Optical fiber polarization; Optical fiber sensors; Optical polarization; Ultrafast optics; liquid-filled; photonic bandgap fiber (PBGF); refractometer;
Conference_Titel :
Electronics and Optoelectronics (ICEOE), 2011 International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-61284-275-2
DOI :
10.1109/ICEOE.2011.6013427
