Field demonstration of high-speed wavelength-division multiplexing quantum key distribution system and its stabilized operation
K. Yoshino, Mikio Fujiwara, Akihiro Tanaka, Seigo Takahashi, Yoshihiro Nambu, Akihisa Tomita, Shigehito Miki, Taro Yamashita, Zhen Wang, Masahide Sasaki, Akio Tajima · 2012
A high-speed quantum key distribution system with the wavelength-division multiplexing was demonstrated in 12hour continuous operation. We achieved a secure key rate of 208 kbps through a 45-km field fiber with 14.5-dB loss.