Keisuke Kasai

10.16-Peta-bit/s Dense SDM/WDM Transmission over 6-Mode 19-Core Fiber across the C+L Band

Daiki Soma, Yuta Wakayama, Shohei Beppu et al. · Journal of Lightwave Technology · 2018 · 127 citations

Engineering, Electrical Engineering, Digital Communication +15

2048 QAM (66 Gbit/s) single-carrier coherent optical transmission over 150 km with a potential SE of 153 bit/s/Hz

Shohei Beppu, Keisuke Kasai, Masato Yoshida et al. · Optics Express · 2015 · 113 citations · Full text

Engineering, Electrical Engineering, Physics +16

QAM quantum stream cipher using digital coherent optical transmission

Masataka Nakazawa, Masato Yoshida, Toshihiko Hirooka et al. · Optics Express · 2014 · 87 citations · Full text

Engineering, Electrical Engineering, Physics +17

256-QAM (64 Gb/s) Coherent Optical Transmission Over 160 km With an Optical Bandwidth of 5.4 GHz

Masataka Nakazawa, Seiji Okamoto, Tatsunori Omiya et al. · IEEE Photonics Technology Letters · 2009 · 69 citations

Engineering, Electrical Engineering, Physics +17

Performance improvement of an acetylene (C2H2) frequency-stabilized fiber laser

Keisuke Kasai, Akihiro Suzuki, Masato Yoshida et al. · IEICE Electronics Express · 2006 · 64 citations · Full text

Natural Sciences, Materials Science, Optical Materials +16