The use of photoelastic tomography to obtain the two-dimensional axial stress profile of a polarization-maintaining (PM) fiber with high resolution and accuracy is described. We illustrate, for what is believed to be the first time, the two-dimensional distribution of the local principal axes of the fiber’s cross section, which is directly related to the fiber’s PM ability. We demonstrate that the stress-induced anisotropy as well as all the stress tensor components of the fiber can be fully determined.
© 2002 Optical Society of America
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2420) Fiber optics and optical communications : Fibers, polarization-maintaining
(100.3010) Image processing : Image reconstruction techniques
Yongwoo Park, Un-Chul Paek, and Dug Young Kim, "Complete determination of the stress tensor of a polarization-maintaining fiber by photoelastic tomography," Opt. Lett. 27, 1217-1219 (2002)