Vector solitons in femtosecond fibre lasers W. C. Chen, W. C. Xu, F. Song, M. C. Shen, D. A. Han and L. B. Chen Eur. Phys. J. D, 50 1 (2008) 123 Published online: 30 October 2008 DOI: 10.1140/epjd/e2008-00194-y