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Balanced pulses in two outputs of quantum photonic chip 被引量:1

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摘要 Silica planar lightwave circuit(PLC) devices can offer great potential for quantum key distribution(QKD) with benefits of low-loss, low-cost, large-scale integration, miniaturization, stability and mass production. A complementary encoding-decoding system for QKD based on silica PLC technology was demonstrated, achieving two channels that have balanced outputs simultaneously. This system is consisted of two chips, and each chip is consisted of a variable optical splitter(VOS), an asymmetric Mach-Zehnder interferometer(AMZI) with a thermo-optic phase modulator(TOPM), a delay line(DL), and a directional coupler(DC). The measured delay times of pulse-pairs for two chips are 396 ps and 398 ps, respectively, and the system has shown relatively high interference visibility(IV) of 93.5% and 91.3% for two channels, respectively.
作者 YOU Jin WANG Yue AN Junming 游金;王玥;安俊明(State Key Laboratory of Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处 《Optoelectronics Letters》 EI 2021年第10期592-597,共6页 光电子快报(英文版)
基金 supported by the Strategic Priority Research Program of Chinese Academy of Sciences (No.XDB43000000) the National Natural Science Foundation of China (No.61805232)。
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