Open AccessStress distribution and induced birefringence analysis for pressure vector sensing based on single mode fibers
Author(s) -
Zhengyong Li,
Chentao Wu,
Hui Dong,
Perry Ping Shum,
Chuanmao Tian,
Shengzhi Zhao
Publication year - 2008
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.003955
Subject(s) - birefringence , optics , mueller calculus , stress (linguistics) , materials science , flow birefringence , orientation (vector space) , standard deviation , physics , core (optical fiber) , mathematics , geometry , statistics , polarimetry , linguistics , philosophy , scattering
We propose a theoretical approach to analyze the pressure stress distribution in single mode fibers (SMFs) and achieve the analytical expression of stress function, from which we obtain the stress components with their patterns in the core and compute their induced birefringence. Then we perform a pressure vector sensing based on approximately 2 km SMF. Using Mueller matrix method we measure the birefringence vectors which are employed to compute the pressure magnitudes and their orientation. When rotating the pressure around the fiber, the corresponding birefringence vector rotates around a circle with double speed. Statistics show the average deviation of calculated pressure-magnitude to practical value is approximately 0.17 N and it is approximately 0.85 degrees for orientation.