High Speed Quantum Key Distribution System. - Akio Tajima; Akihiro Tanaka; Seigo Takahashi; Ken-ichiro Yoshino; Yoshihiro Nambu (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2010)

Next Generation Optical Access Network: Standardization Outline and Key Technologies for Co-existence with Legacy Systems. - Akio Tajima; Hiroki Yanagisawa; Seigo Takahashi (IEICE Trans. Electron., 2010)