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19 January 2011 The bending sensitivity of long-period fiber gratings written by CO2 laser under external tension
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Proceedings Volume 7986, Passive Components and Fiber-Based Devices VII; 798616 (2011) https://doi.org/10.1117/12.888653
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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 (19 January 2011); https://doi.org/10.1117/12.888653
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