title: Beam-propagation method analysis of a nonlinear directional coupler.
abstract: The beam-propagation method is employed to analyze nonlinear directional-coupler operation for various combinations nonlinear materials and initially mismatched guides. A mixed focusing-defocusing configuration is found optimal results.
authors.forename: L
authors.initials: L
authors.lastname: Thylen
authors.forename: E M
authors.initials: EM
authors.lastname: Wright
authors.forename: G I
authors.initials: GI
authors.lastname: Stegeman
authors.forename: C T
authors.initials: CT
authors.lastname: Seaton
authors.forename: J V
authors.initials: JV
authors.lastname: Moloney