Share Email Print
cover

Proceedings Paper

Axial strain sensor based on long-period fiber gratings
Author(s): Tao Geng; Shixin Geng; Wenlei Yang; Tian Ye; Zhaojun Liu; Renfeng Xue
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

In this paper, we carry out a periodically taper experiment on standard single-mode optical fiber by electro-thermal fused taper system, and fabricate a long period fiber grating (LPFG). The resonance amplitude of the LPFG is -23dB. Then we have an experimental study about axial strain characteristics of the LPFG. In the axial stretching process of the grating, the period of the grating become larger, the diameter become smaller, and because of the photo-elastic effect, the refractive index of the core and the optical cladding change. Experimental results show that the resonant wavelength peak position of the LPFG had a good linear relationship with the axial strain. With the increase of axial strain, the resonance wavelength shift to short and the sensitivity is about -1.40pm/μepsilon.

Paper Details

Date Published: 18 September 2014
PDF: 6 pages
Proc. SPIE 9282, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 928228 (18 September 2014); doi: 10.1117/12.2070228
Show Author Affiliations
Tao Geng, Harbin Engineering Univ. (China)
Shixin Geng, Harbin Engineering Univ. (China)
Wenlei Yang, Harbin Engineering Univ. (China)
Tian Ye, Harbin Engineering Univ. (China)
Zhaojun Liu, Harbin Engineering Univ. (China)
Renfeng Xue, Harbin Engineering Univ. (China)


Published in SPIE Proceedings Vol. 9282:
7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment
Yudong Zhang; Wei Gao, Editor(s)

© SPIE. Terms of Use
Back to Top