Title :
An all-fiber electric field sensor based on tapered fiber-slab waveguide coupler
Author :
Shaofei Dong ; Chunyang Han ; Hui Ding ; Xianli Li ; Xiaofeng Qi
Author_Institution :
State Key Lab. of Electr. Insulation & Power Equip., Xi´an Jiaotong Univ., Xian, China
Abstract :
In this paper, a novel all-fiber electric field sensor based on tapered fiber-slab waveguide coupler was proposed for the first time. Experiments were implemented for investigating the dependences of TFSC transmission features on their geometries parameters. On the base of that a TFSC based sensor with optimal construction parameters and sharper coupling spectra were fabricated. The nearly linear relationship between the changes of sensor outputs and the external applied electric field are demonstrated by experiments. The minimal detectable of electric field has also been demonstrated experimentally to be ~50V/cm.
Keywords :
electric field measurement; fibre optic sensors; optical fibre couplers; optical waveguides; TFSC based sensor; TFSC transmission features; all-fiber electric field sensor; optimal construction parameters; tapered fiber-slab waveguide coupler; Couplers; Couplings; Electric fields; Optical fiber couplers; Optical fiber sensors; electric field sensor; slab waveguide; tapered fiber; waveguides coupling;
Conference_Titel :
Condition Monitoring and Diagnosis (CMD), 2012 International Conference on
Conference_Location :
Bali
Print_ISBN :
978-1-4673-1019-2
DOI :
10.1109/CMD.2012.6416379