title: Nonlinear dual-core photonic crystal fiber couplers.
abstract: We study nonlinear modes of dual-core photonic crystal fiber couplers made of a material with the focusing Kerr nonlinearity. We find numerically the profiles of symmetric, antisymmetric, and asymmetric nonlinear modes and analyze all-optical switching generated by the instability of the symmetric mode. We also describe elliptic spatial solitons controlled by the waveguide boundaries.
authors.affiliation: Nonlinear Physics Centre, Research School of Physical Sciences and Engineering, Australian National University, Canberra ACT 0200, Australia. jrs@uvigo.es
authors.forename: José R
authors.initials: JR
authors.lastname: Salgueiro
authors.forename: Yuri S
authors.initials: YS
authors.lastname: Kivshar