IEEE JOURNAL OF QUANTUM ELECTRONICS 53(4) 2017年8月 [査読有り]
We report the first on-line high-speed and large-capacity secure optical communication system. This was realized by combining a quadrature amplitude modulation/quantum noise stream cipher technology where a coherent multi-level optical signal is h...
Quantum Science and Technology 2(2) 2017年6月 [査読有り]
We have developed a continuous-variable quantum key distribution (CV-QKD) system that employs discrete quadrature-amplitude modulation and homodyne detection of coherent states of light. We experimentally demonstrated automated secure key generati...
Shibata K   Shibayama H   Torii A   Suzuki R   Toda H   Eto Y   Takahashi M   Saito H   Hirano T   
Optics InfoBase Conference Papers Part F78-JSAP 2017 2017年 [査読有り]