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Proceedings Article

The bending sensitivity of long-period fiber gratings written by CO2 laser under external tension

[+] Author Affiliations
Dan Yang, Yunqi Liu, Wentao Tu, Tingyun Wang

Shanghai Univ. (China)

Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798616 (January 19, 2011); doi:10.1117/12.888653
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From Conference Volume 7986

  • Passive Components and Fiber-Based Devices VII
  • Perry P. Shum
  • Shanghai, China | December 08, 2010

abstract

We studied experimentally the bending sensitivity of long-period fiber gratings (LPFGs) written in the single-mode fiber under external tension by CO2 laser. It is found that the LPFG was not only more sensitive to the fiber bending, but also sensitive to the bending direction, which can be attributed to the asymmetric index modification induced across the fiber section by the CO2 laser. Thanks to their unique bending characteristics, this kind of LPFGs could find applications in directional fiber bending sensors.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

Topics

Lasers ; Sensors
Citation

Dan Yang ; Yunqi Liu ; Wentao Tu and Tingyun Wang
"The bending sensitivity of long-period fiber gratings written by CO2 laser under external tension", Proc. SPIE 7986, Passive Components and Fiber-Based Devices VII, 798616 (January 19, 2011); doi:10.1117/12.888653; http://dx.doi.org/10.1117/12.888653


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