作者
Ivan A Burenkov, Alexandra Semionov, Hala, Thomas Gerrits, Anouar Rahmouni, DJ Anand, Ya-Shian Li-Baboud, Oliver Slattery, Abdella Battou, Sergey V Polyakov
发表日期
2023/3/21
期刊
Optics Express
卷号
31
期号
7
页码范围
11431-11446
出版商
Optica Publishing Group
简介
We investigate the coexistence of clock synchronization protocols with quantum signals in a common single-mode optical fiber. By measuring optical noise between 1500 nm to 1620 nm we demonstrate a potential for up to 100 quantum, 100 GHz wide channels coexisting with the classical synchronization signals. Both “White Rabbit” and pulsed laser-based synchronization protocols were characterized and compared. We establish a theoretical limit of the fiber link length for coexisting quantum and classical channels. The maximal fiber length is below approximately 100 km for off-the-shelf optical transceivers and can be significantly improved by taking advantage of quantum receivers.
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IA Burenkov, A Semionov, Hala, T Gerrits, A Rahmouni… - Optics Express, 2023