"Mikio Fujiwara,Toshiyuki Ito,Mitsuo Kitamura,Hiroyuki Endou,Morio Tohoshima,hideki Takenaka,yoshihisa takayama,Ryusuke Shimizu,Masahito Takeoka,Masahide Sakaki,Ryutaroh Matsumoto","Secret Key Agreement demonstration over 7.8km free-space optical channel","QCMC 2016",,,,,,2016,