Title :
A novel fiber-optic torsion sensor based on a CO/sub 2/-laser-induced long-period fiber grating
Author :
Wang, Y.P. ; Rao, Y.J. ; Hu, A.Z. ; Zeng, X.K. ; Ran, Z.L. ; Zhu, T.
Author_Institution :
Dept. of Optoelectron. Eng., Chongqing Univ., China
Abstract :
In this letter, we propose and demonstrate a fiber-optic torsion sensor based on a novel long period fiber grating (LPFG) written by high-frequency CO/sub 2/ laser pulses. Such a sensor can be easily embedded into a structure and can determine both the twist rate and the twist direction simultaneously.
Keywords :
diffraction gratings; fibre optic sensors; intelligent sensors; torsion; CO/sub 2/; CO/sub 2/ laser pulse writing; embedded sensor; fiber-optic torsion sensor; long-period fiber grating; Fiber gratings; Fiber lasers; Gas detectors; Optical devices; Optical fiber sensors; Optical pulses; Optical sensors; Resonance; Shearing; Thermal stresses;
Conference_Titel :
Optical Fiber Sensors Conference Technical Digest, 2002. Ofs 2002, 15th
Conference_Location :
Portland, OR, USA
Print_ISBN :
0-7803-7289-1
DOI :
10.1109/OFS.2002.1000523
