无源光网络实现GigaHertz-Clocked多用户量子密钥分发
Passive Optical Network Approach to GigaHertz-Clocked Multiuser Quantum Key Distribution
摘要：
介绍了量子密钥分发技术在基于光纤的宽带无源光接入网中的应用。该应用基于我们的850 nm波长千兆赫时钟速率单接收机系统，与现有的电信光纤兼容，并利用了目前接入网中未使用的波长带。开发的量子密钥分发网络能够以高达3 GHz的时钟频率进行与城域网接入链路跨度（10 km）一致的距离传输。
英文摘要：
We present the application of quantum key distribution technologies to fiber-based broadband passive optical access networks. This application is based on our 850 nm wavelength gigahertz clock-rate single-receiver system, is compatible with existing telecommunications fiber and exploits a wavelength band not currently utilized in access networks. The developed quantum key distribution networks are capable of transmitting over distances consistent with the span of access links for metropolitan networks (10 km), at clock frequencies ranging up to 3 GHz.
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