title: Circular Fourier analysis of arbitrarily shaped optical fibers.
abstract: Propagation constants of weakly guiding optical fibers with arbitrary shapes can be efficiently calculated through a limited circular Fourier expansion of the wave equation, with a direct numerical integration.
authors.forename: Y H
authors.initials: YH
authors.lastname: Wang
authors.forename: C
authors.initials: C
authors.lastname: Vassallo