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High-speed and high-performance polarization-based quantum key distribution system without side channel effects caused by multiple lasers 被引量:1
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作者 HEASlN Ko BYUNG-SEOK CHOI +3 位作者 JOONG-SEON CHOE KAP-JOONG KIM JONG-Hol KIM chun ju youn 《Photonics Research》 SCIE EI 2018年第3期214-219,共6页
Side channel effects such as temporal disparity and intensity fluctuation of the photon pulses caused by random bit generation with multiple laser diodes in high-speed polarization-based BB84 quantum key distribution(... Side channel effects such as temporal disparity and intensity fluctuation of the photon pulses caused by random bit generation with multiple laser diodes in high-speed polarization-based BB84 quantum key distribution(QKD) systems can be eliminated by increasing the DC bias current condition. However, background photons caused by the spontaneous emission process under high DC bias current degrade the performance of QKD systems. In this study, we investigated the effects of spontaneously emitted photons on the system performance in a high-speed QKD system at a clock rate of 400 MHz. Also, we show further improvements in the system performance without side channel effects by utilizing the temporal filtering technique with real-time fieldprogrammable gate array signal processing. 展开更多
关键词 QKD High-speed and high-performance polarization-based quantum key distribution system without side channel effects caused by multiple lasers
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