Tipping point for the future scalable OXC - What size MxM WSS is needed? - Masaki Niwa; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato (OFC, 2016)

Optical tunable filter for gridless ROADM. - Masaki Niwa; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato (OFC, 2017)

Highly reliable large-scale optical cross-connect architecture utilizing M×M wavelength-selective switches. - Shuhei Yamakami; Masaki Niwa; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato (OFC, 2017)

Tipping Point for the Future Scalable OXC: What Size M × M WSS Is Needed? - Masaki Niwa; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato (JOCN, 2017)

Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services. - Shuhei Yamakami; Masaki Niwa; Yojiro Mori; Hiroshi Hasegawa; Ken-ichi Sato; Fumikazu Inuzuka; Akira Hirano (IEICE Trans. Commun., 2019)