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 · 123 citations

Single Optical Fiber, Engineering, Optical Transmission System +9

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 · 110 citations · Full text

Free-space Optical Network, Photonics, Engineering +12

QAM quantum stream cipher using digital coherent optical transmission

Masataka Nakazawa, Masato Yoshida, Toshihiko Hirooka et al. · Optics Express · 2014 · 81 citations · Full text

Engineering, Quantum Privacy, Quantum Engineering +19

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

Free-space Optical Network, Photonics, Optical Bandwidth +11

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

Photonics, Engineering, Laser Science +13