High-speed pulse modulation based on FPGA
Author(s): WANG Chaoze, LIU Weiyue, CAO Lei, LI Fengzhi, JIANG Zhidi, PENG Chengzhi, College of Information Science and Engineering, Ningbo University, Modern Physics Department, University of Science and Technology of China
Pages: 188-192
Year: 2016 Issue: 2
Journal: Chinese Journal of Quantum Electronics
Keyword: quantum information; quantum key distribution; pulse modulation; FPGA;
Abstract: Quantum key distribution(QKD) is a research topic of information security area.It can provide physical security key distribution.However,the low key rate of QKD limits its practical appliance.The increasement of the speed of LD driver pulse modulation effectively improves signal rate,to expedite the key generation rate of quantum key distribution.Modulation rate of 200 MHz can be achieved based on FPG A at 200 MHz clock frequency.Experiment results show that the jitter of the output quantum signal is less than 2 ns when using the scheme to generate trigger pulse to driving LD,which meets the requirements of quantum key distribution.
Pages: 188-192
Year: 2016 Issue: 2
Journal: Chinese Journal of Quantum Electronics
Keyword: quantum information; quantum key distribution; pulse modulation; FPGA;
Abstract: Quantum key distribution(QKD) is a research topic of information security area.It can provide physical security key distribution.However,the low key rate of QKD limits its practical appliance.The increasement of the speed of LD driver pulse modulation effectively improves signal rate,to expedite the key generation rate of quantum key distribution.Modulation rate of 200 MHz can be achieved based on FPG A at 200 MHz clock frequency.Experiment results show that the jitter of the output quantum signal is less than 2 ns when using the scheme to generate trigger pulse to driving LD,which meets the requirements of quantum key distribution.
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