We propose a new method for the recovery of the refractive-index profile of a single-mode or multimode optical guided structure. We solve the inverse problem using the Wigner distribution and reduce it to the solution of a linear system of equations.
© 1998 Optical Society of America
Daniela Dragoman, Mircea Dragoman, and Jean-Pierre Meunier, "Recovery of the Refractive-Index Profile from the Wigner Distribution of an Optical Waveguide," Appl. Opt. 37, 2357-2360 (1998)