1. 110 W fibre laser
2. N.S. Platonov D.V. Gapontsev, V.P. Gapontsev, V. Shumilin, in: Proceedings of the Conference on Lasers and Electro-Optics 2002, Long Beach, USA, May 19–24, 2002, postdeadline paper CPDC3
3. J. Limpert, A. Liem, H. Zellmer, A. Tünnermann, in: Proceedings of the Advanced Solid-State Photonics 2003, San Antonio, USA, Feb. 2–5, 2003, postdeadline paper PD1
4. Yb3+ sensitised Er3+ doped silica optical fibre with ultrahigh transfer efficiency and gain