Spectral switching control of ultrafast pulses in dual core photonic crystal fibreM. Koys, I. Bugar, I. Hrebikova, V. Mesaros, R. Buczynski and F. UherekJ. Eur. Opt. Soc.-Rapid Publ., 8 (2013) 13041DOI: https://doi.org/10.2971/jeos.2013.13041