An Experimental Realization of Quantum Cryptosystem. - Toshio Hasegawa; Tsuyoshi Nishioka; Hirokazu Ishizuka; Jun-ichi Abe; Katsuhiro Shimizu; Mitsuru Matsui; Shigeki Takeuchi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2002)

A 3-bit soft-decision IC for powerful forward error correction in 10-Gb/s optical communication systems. - Hitoyuki Tagami; Tatsuya Kobayashi; Yoshikuni Miyata; Kazuhide Ouchi; Kazushige Sawada; Kazuo Kubo; Katsuhiko Kuno; Hideo Yoshida; Katsuhiro Shimizu; Takashi Mizuochi; Kuniaki Motoshima (IEEE J. Solid State Circuits, 2005)

Optical burst switching with burst collision resolution using a fast 4x4 PLZT switch. - Abdullah Al Amin; Katsuhiro Shimizu; Mitsuru Takenaka; Ryo Inohara; Kohsuke Nishimura; Yukio Horiuchi; Masashi Usami; Yutaka Takita; Yutaka Kai; Yasuhiko Aoki; Hiroshi Onaka; Toshiharu Miyahara; et al. (IEICE Electron. Express, 2006)

Wavelength Conversion Characteristics of SOA-MZI Based All-Optical NRZ-OOK/RZ-BPSK Modulation Format Converter. - Suresh M. Nissanka; Ken Mishina; Akihiro Maruta; Shunsuke Mitani; Kazuyuki Ishida; Katsuhiro Shimizu; Tatsuo Hatta; Ken-ichi Kitayama (IEICE Trans. Commun., 2008)