N. Tsukiji

6.4-Tb/s (160×42.7 Gb/s) transmission with 0.8 bit/s/Hz spectral efficiency over 32×100 km of fiber using CSRZ-DPSK format

M. O. Pedersen, L. Nelson, S. Namiki, 2003, OFC 2003.

Broadband flat-noise Raman amplifier using low-noise bidirectionally pumping sources

Shu Namiki, Toshio Kimura, Yoshihiro Emori, 2001, Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551).