Stability of high bit rate quantum key distribution on installed fiber
J. F. Dynes, I. Choi, A. W. Sharpe, A. R. Dixon, Zhiliang L. Yuan, Mikio Fujiwara, Masahide Sasaki, Andrew J. Shields · Optics Express · 2012
We present a study of the effects of ambient fluctuations on the bit rate stability of a quantum key distribution (QKD) link operating on installed fiber. Secure quantum keys were distributed continuously for 60 hours over 45km of installed fiber. A total of 6.33 × 1010 bits were exchanged during this period, the largest volume of secure keys distributed on installed fiber in a single continuous session to date. We report a record bit-rate distance product for QKD of 13.2 × 106 (bits/s)-km. ©2012 Optical Society of America.