Switching and instabilities of optical vortices in nonlinear dual-core photonic crystal fibre couplersJosé R. Salgueiro, Humberto Michinel, Albert Ferrando and Yuri S. KivsharJ. Eur. Opt. Soc.-Rapid Publ., 1 (2006) 06014DOI: https://doi.org/10.2971/jeos.2006.06014
