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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Qi Shen Shengkai Liao Shubin Liu Jinhong Wang Weiyue Liu Chengzhi Peng Qi An |
| Copyright Year | 2012 |
| Description | Author affiliation: College of Information Science and Engineering, Ningbo University, China (Weiyue Liu) || State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui 230026, China (Qi Shen; Shubin Liu; Jinhong Wang; Qi An) || Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Anhui 230026, China (Shengkai Liao; Chengzhi Peng) |
| Abstract | Quantum key distribution (QKD) is the most matured application of quantum communication. The time synchronization and system timing jitter are essential to a practical QKD experiment, which can directly influence the quantum bit error rate (QBER) and the final key rate. High precision time-to-digital convertor (TDC) can effectively reduce the system timing jitter, resulting in lower QBER and higher key rate. Here, we introduce a TDC based on a field-programmable gate array (FPGA). Its high resolution of 50 ps, low dead time and large dynamic range can well meet the requirement of the QKD experiment. A free space QKD system setup using the FPGA-based TDC has been built up. The timing precision of the synchronous light and the system timing jitter were tested. The results demonstrate that the FPGA-based TDC could be successfully applied in the QKD experiment. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 500628 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781467310826 |
| e-ISBN | 9781467310840 |
| DOI | 10.1109/RTC.2012.6418107 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2012-06-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Timing jitter Synchronization Field programmable gate arrays Photonics Clocks Laser beams |
| Content Type | Text |
| Resource Type | Article |
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