H. Takara, T. Mizuno, A. Sano and Y. Miyamoto, “High-capacity multicore fiber transmission technology,“ JThA.11, Shanghai, China, Proc. Opto-Electron. Comm. Conf. (OECC2015), Jul. 2015.
R.-J. Essiambre, R. Ryf, M. A. Mestre, N. Fontaine, and M. Esmaeelpour, “Review of Experimental Observations of Intermodal Nonlinearities in a Few-Mode Fiber,“ JThA.12, Shanghai, China, Proc. Opto-Electron. Comm. Conf. (OECC2015), Jul. 2015.