中国物理B ›› 2021, Vol. 30 ›› Issue (8): 80302-080302.doi: 10.1088/1674-1056/abe2ff

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Realization of simultaneous balanced multi-outputs for multi-protocols QKD decoding based onsilica-based planar lightwave circuit

Jin You(游金)1,3, Yue Wang(王玥)1,†, and Jun-Ming An(安俊明)1,2,3   

  1. 1 State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2020-12-11 修回日期:2021-01-16 接受日期:2021-02-04 出版日期:2021-07-16 发布日期:2021-07-20
  • 通讯作者: Yue Wang E-mail:wy1022@semi.ac.cn
  • 基金资助:
    Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0306403) and the National Nature Science Foundation of China (Grant No. 61805232).

Realization of simultaneous balanced multi-outputs for multi-protocols QKD decoding based onsilica-based planar lightwave circuit

Jin You(游金)1,3, Yue Wang(王玥)1,†, and Jun-Ming An(安俊明)1,2,3   

  1. 1 State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;
    2 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2020-12-11 Revised:2021-01-16 Accepted:2021-02-04 Online:2021-07-16 Published:2021-07-20
  • Contact: Yue Wang E-mail:wy1022@semi.ac.cn
  • Supported by:
    Project supported by the National Key Research and Development Program of China (Grant No. 2018YFA0306403) and the National Nature Science Foundation of China (Grant No. 61805232).

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摘要： Silica-based planar lightwave circuit (PLC) devices can reduce transmission loss and cost in a quantum key distribution (QKD) system, and have potential applications in integration and production. A PLC-based quantum decoding integrated chip for multi-protocols is designed and fabricated, which is composed of variable optical splitters (VOSs), asymmetric Mach-Zehnder interferometers (AMZIs), and variable directional couplers (VDCs). Balanced pulse-pairs of four outputs are obtained simultaneously with measured delay times of 405 ps and 402 ps, respectively. The chip has advantages in achieving high interference visibility and low quantum bit error rate (QBER).

关键词: quantum key distribution (QKD), planar lightwave circuit (PLC), multi-protocols, decoder

Abstract: Silica-based planar lightwave circuit (PLC) devices can reduce transmission loss and cost in a quantum key distribution (QKD) system, and have potential applications in integration and production. A PLC-based quantum decoding integrated chip for multi-protocols is designed and fabricated, which is composed of variable optical splitters (VOSs), asymmetric Mach-Zehnder interferometers (AMZIs), and variable directional couplers (VDCs). Balanced pulse-pairs of four outputs are obtained simultaneously with measured delay times of 405 ps and 402 ps, respectively. The chip has advantages in achieving high interference visibility and low quantum bit error rate (QBER).

Key words: quantum key distribution (QKD), planar lightwave circuit (PLC), multi-protocols, decoder

中图分类号:  (Quantum communication)

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