8P. Sprangle, A. Ting, J. Pefiano et al.. Incoherent combining of high-power fiber lasers for directed-energy applications [R]. Washington, DC, 2008, ADA477956.
9P. Sprangle, A. Ting, J. Penano et al.. Beam combining: high-power fiber-laser beams are combined incoherently [EB/OL]. Laser Focus World, Jul 21, 2008.
10V. Gapontsev, D. Gapontsev, N. Platonov et al.. 2 kW cw ytterbium fiber laser with record diffraction-limited brightness[C]. CLEO Europe, 2005: 508-508.