Gain-controlled wave chaos in a chaotic optical fibre C. Michel, S. Tascu, V. Doya, O. Legrand and F. Mortessagne J. Eur. Opt. Soc.-Rapid Publ., 4 (2009) 09020 Published online: 26 April 2009 DOI: 10.2971/jeos.2009.09020