Multimode EDFA performance in mode-division multiplexed transmission systems. - Yongmin Jung; Vincent A. J. M. Sleiffer; B. Inan; Maxim Kuschnerov; V. Veljanovski; Brian Corbett; R. Winfield; Qiongyue Kang; A. Dhar; J. K. Sahu; Francesco Poletti; Shaif-Ul Alam; et al. (OFC/NFOEC, 2013)