title: Theory and design of periodic couplers.
abstract: The theory of periodic couplers is examined from the point of view of the reciprocity theorem and a modified Born scattering approach. Design equations for several coupler configurations are presented. Efficiency and aperture size calculations are compared with previously published data for grating and Bragg couplers.
authors.forename: J H
authors.initials: JH
authors.lastname: Harris
authors.forename: R K
authors.initials: RK
authors.lastname: Winn
authors.forename: D G
authors.initials: DG
authors.lastname: Dalgoutte