title: Operation mechanism of the single-mode optical-waveguide Y junction.
abstract: An explanation of the working mechanism of single-mode optical-waveguide Y junction is presented. Taking into account the contribution of radiation mode, the power conservation at the junction is clearly verified. Also, the analogy between the behavior of the single-mode Y junction and that of a beam splitter is discussed.
authors.forename: M
authors.initials: M
authors.lastname: Izutsu
authors.forename: Y
authors.initials: Y
authors.lastname: Nakai
authors.forename: T
authors.initials: T
authors.lastname: Sueta