Title :
A Hollow Core Fiber-Based Intermodal Interferometer for Measurement of Strain and Temperature
Author :
Fei Qi ; Limin Hu ; Xinyong Dong ; Yi Xin ; Chun-Liu Zhao ; Shangzhong Jin ; Chan, Julian Chi Chiu
Author_Institution :
Inst. of Optoelectron. Technol., China Jiliang Univ., Hangzhou, China
Abstract :
A hollow core fiber-based all-fiber intermodal interferometer is proposed for measurement of strain and temperature. The sensing structure is simply a short segment of hollow core silica fiber being sandwiched between two normal single mode fibers. The fabrication process only involves a conventional fusion splicer and a mechanical fiber cleaver. Experimental results show that sensitivities of 1.21 pm/με and 21.30 pm/°C are achieved for strain and temperature measurements, respectively.
Keywords :
fibre optic sensors; light interferometers; optical fibre fabrication; silicon compounds; splicing; strain measurement; strain sensors; temperature measurement; temperature sensors; fusion splicer; hollow core fiber-based all-fibre intermodal interferometer; hollow core silica fiber; mechanical fiber cleaver; normal single mode fibers; sensing structure; strain measurement; temperature measurement; Hollow core fibers; fiber sensors; intermodal interferometers;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2013.2263798
