title: Non-classical interference in integrated 3D multiports.
abstract: We demonstrate three and four input multiports in a three dimensional glass platform, fabricated using the femtosecond laser direct-write technique. Hong-Ou-Mandel (HOM) interference is observed and a full quantum characterization is performed, obtaining two photon correlation matrices for all combinations of input and output ports. For the 3-port case, the quantum visibilities are accurately predicted solely from measurement of the classical coupling ratios.
authors.affiliation: Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS), MQ Photonics Research Centre, Department of Physics and Astronomy, Macquarie University, North Ryde, 2109 NSW, Australia. thomas.meany@mq.edu.au
authors.forename: Thomas
authors.initials: T
authors.lastname: Meany
authors.forename: Michael
authors.initials: M
authors.lastname: Delanty
authors.forename: Simon
authors.initials: S
authors.lastname: Gross
authors.forename: Graham D
authors.initials: GD
authors.lastname: Marshall
authors.forename: M J
authors.initials: MJ
authors.lastname: Steel
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Withford
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D006801:Humans; D017785:Photons; D020349:Surface Plasmon Resonance / Q000295:instrumentation*