Efficient singlecast / multicast method For active optical access network using PLZT high-speed optical switches. - Kunitaka Ashizawa; Kazumasa Tokuhashi; Daisuke Ishii; Satoru Okamoto; Naoaki Yamanaka; Eiji Oki (HPSR, 2010)

Scalable Active Optical Access Network Using Variable High-Speed PLZT Optical Switch/Splitter. - Kunitaka Ashizawa; Takehiro Sato; Kazumasa Tokuhashi; Daisuke Ishii; Satoru Okamoto; Naoaki Yamanaka; Eiji Oki (IEICE Trans. Commun., 2012)

MPCP based active optical access network with PLZT high-speed optical switch. - Kazumasa Tokuhashi; Kunitaka Ashizawa; Daisuke Ishii; Satoru Okamoto; Naoaki Yamanaka; Koji Wakayama; Keiichi Nashimoto (Opt. Switch. Netw., 2012)

High speed 100GE adaptive link rate switching for energy consumption reduction. - Takahiro Miyazaki; Ion Popescu; Mirai Chino; Xiaoyu Wang 013; Kunitaka Ashizawa; Satoru Okamoto; Malathi Veeraraghavan; Naoaki Yamanaka (ONDM, 2015)

Logical Optical Line Terminal Placement Optimization in the Elastic Lambda Aggregation Network With Optical Distribution Network Constraints. - Takehiro Sato; Kunitaka Ashizawa; Hidetoshi Takeshita; Satoru Okamoto; Naoaki Yamanaka; Eiji Oki (JOCN, 2015)