D. Chowdhury et D. Wilcox, Comparison between optical fiber birefringence induced by stress anisotropy and geometric deformation, IEEE S T QU, 6(2), 2000, pp. 227-232
A variational formulation-based vector perturbation model is used to compar
e the contribution of stress anisotropy and geometric deformation toward op
tical fiber birefringence. We show that relative impact of stress on birefr
ingence and differential group delay depends significantly on the exact fib
er index profile.