title: Reconfigurable directional couplers and junctions optically induced by nondiffracting Bessel beams.
abstract: We put forward the concept of reconfigurable structures optically induced by mutually incoherent nondiffracting Bessel beams in Kerr-type nonlinear media. We address collinear couplers and X junctions and show how one can tune the switching properties of such structures by varying the intensity of the Bessel beams.
authors.affiliation: ICFO-Institut de Ciencies Fotoniques, and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain.
authors.forename: Zhiyong
authors.initials: Z
authors.lastname: Xu
authors.forename: Yaroslav V
authors.initials: YV
authors.lastname: Kartashov
authors.forename: Lluis
authors.initials: L
authors.lastname: Torner
authors.forename: Victor A
authors.initials: VA
authors.lastname: Vysloukh