title: Antisymmetric grating coupler: experimental results.
abstract: The principle of an antisymmetric grating coupler was recently proposed theoretically as a planar waveguide add-drop multiplexer. It has the potential to enhance significantly the functionality of an add-drop multiplexer based on grating-assisted coupling. Here we realize the concept experimentally in an all-fiber geometry. We show that conventional devices exhibit two high-reflection bands. In contrast, the antisymmetric grating coupler has only a single reflection band, thereby dramatically improving its filtering characteristics.
authors.affiliation: Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Australian Technology Park, Eveleigh, Sydney NSW 1430, Australia. m.aslund@oftc.usyd.edu.au
authors.forename: Mattias
authors.initials: M
authors.lastname: Aslund
authors.forename: John
authors.initials: J
authors.lastname: Canning
authors.forename: Leon
authors.initials: L
authors.lastname: Poladian
authors.forename: C Martijn
authors.initials: CM
authors.lastname: de Sterke
authors.forename: Alex
authors.initials: A
authors.lastname: Judge