title: General properties of N x M self-images in a strongly confined rectangular waveguide.
abstract: General properties of N x M self-images in a strongly confined rectangular waveguide are given. Analytical formulas are derived for the positions, amplitudes, and phases of the N x M images at the end of multimode interference section. The formulas are verified with numerical simulation of a three-dimensional semivectorial beam propagation method.
authors.affiliation: Center for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Yu-Quan, Hangzhou 310027, China. sailing@kth.se
authors.forename: Sailing
authors.initials: S
authors.lastname: He
authors.forename: Xianyu
authors.initials: X
authors.lastname: Ao
authors.forename: Vladimir
authors.initials: V
authors.lastname: Romanov