Inverse fourier spectroscopic measurements of stress-induced cross-coupled modes distributed over some extent of birefringent single-mode fiber and their application to fiber-optic pressure sensor

Abstract

Theory and experiments using inverse Fourier spectroscopy are presented of cross-coupled modes induced by laterally loaded pressure along a some length of birefringent single-mode fiber. The results are successfully applicable to the determination not only of the location but also of the extent of the applied pressure.