title: Free-space regular optical interconnections: a mathematical analysis.
abstract: The matrix descriptions for three types of free-space regular optical interconnection networks, the perfect shuffle, the banyan, and the crossover, are given. Some new properties of the perfect shuffle are presented in matrix equations, and the equivalence of the three types of interconnection networks is simply shown.
authors.forename: M
authors.initials: M
authors.lastname: Cao
authors.forename: H
authors.initials: H
authors.lastname: Li
authors.forename: F
authors.initials: F
authors.lastname: Luo
authors.forename: A
authors.initials: A
authors.lastname: Jun
authors.forename: D
authors.initials: D
authors.lastname: Liu