title: Direct UV-written broadband directional planar waveguide couplers.
abstract: We report the fabrication of broadband directional couplers by direct UV-writing. The fabrication process is shown to be beneficial, robust and flexible. The components are compact and show superior performance in terms of loss and broadband operation.
authors.forename: Massimo
authors.initials: M
authors.lastname: Olivero
authors.forename: Mikael
authors.initials: M
authors.lastname: Svalgaard