Translator Disclaimer
Paper
18 May 2011 Bending sensitivity of long-period fiber gratings written in polarization-maintaining fiber by CO2 laser
Author Affiliations +
Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77539K (2011) https://doi.org/10.1117/12.886048
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
We demonstrate the unique bending characteristics of the long-period fiber gratings (LPFGs) written in a panda polarization-maintaining (PM) fiber using CO2 laser. The bending sensitivity of the grating is not only sensitive to the direction of the fiber bending, but also dependent on the irradiation direction of the laser writing beam with respect to the principal axes of the PM fiber. The high sensitivity directional bending effect can be attributed to the asymmetric index distribution of the fiber cladding induced by both stress changes in the stress-applying parts of the PM fiber and high absorption of the CO2 laser at the exposure side, which may find promising application in fiber grating based bending sensors.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jian Zou, Yunqi Liu, Dan Yang, and Tingyun Wang "Bending sensitivity of long-period fiber gratings written in polarization-maintaining fiber by CO2 laser", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539K (18 May 2011); https://doi.org/10.1117/12.886048
PROCEEDINGS
4 PAGES


SHARE
Advertisement
Advertisement
Back to Top