Realization of simultaneous balanced multi-outputs for multi-protocols QKD decoding based on silica-based planar lightwave circuit*

被引：1
作者：
You, Jin [1 ,3 ]
Wang, Yue [1 ]
An, Jun-Ming [1 ,2 ,3 ]
机构：
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
[3] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China
来源：
CHINESE PHYSICS B | 2021年 / 30卷 / 08期
关键词：
quantum key distribution (QKD); planar lightwave circuit (PLC); multi-protocols; decoder; QUANTUM; INTERFERENCE;
D O I：
10.1088/1674-1056/abe2ff
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
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).
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页数：7
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