基于二氧化硅平面光波导的强度均衡的光脉冲对的产生
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1.中国科学院半导体研究所 集成光电子学国家重点实验室,北京 100083;2.中国科学院大学 材料科学与光电技术学院,北京;100049

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Generation of an intensity-balanced optical pulse couple based on silica planar lightwave circuit
Author:
Affiliation:

1.State Key Laboratory on 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

Fund Project:

National Key R &D Program of China 2018YFA0306403;National Nature Science Foundation of China 61805232 61435013;K.C. Wong Education FoundationSupported by National Key R &D Program of China (2018YFA0306403), National Nature Science Foundation of China (61805232,61435013), and K.C. Wong Education Foundation.

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    摘要:

    提出了一种基于平面光波导工艺的带有可调定向耦合器的非对称MZI结构.模拟结果显示,当定向耦合器的两个耦合臂的折射率独立改变时,定向耦合器的调制效果较好;当调制电极与耦合区的波导间距为0时,两个耦合臂的温度差达到最大.测试得到,AMZI的插入损耗为2.05 dB,延迟时间为151.4 ps,脉冲对的功率比近似为1.该器件有助于提高集成QKD器件的性能.

    Abstract:

    To make the pulse couple balanced, an asymmetric Mach-Zehnder interferometer (AMZI) with a tunable directional coupler (DC) of a silica-based planar lightwave circuit (PLC) technology was proposed. The simulation results show that the DC tuning effect is better when the refractive index of both coupling arms changes independently. When the distance between the electrode and the waveguide core in the coupling zone is 0, the temperature difference between the coupling arms reaches the maximum. The test results of AMZI show that the insertion loss is 2.05 dB and the delay time is 151.4 ps. The power ratio of the pulse couple is highly close to one. Our device presents a practical solution to improve the performance of future integrated QKD device.

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任梅珍,李骁,张家顺,王亮亮,王玥,尹晓杰,吴远大,安俊明.基于二氧化硅平面光波导的强度均衡的光脉冲对的产生[J].红外与毫米波学报,2019,38(6):701~705]. REN Mei-Zhen, LI Xiao, ZHANG Jia-Shun, WANG Liang-Liang, WANG Yue, YIN Xiao-Jie, WU Yuan-Da, AN Jun-Ming. Generation of an intensity-balanced optical pulse couple based on silica planar lightwave circuit[J]. J. Infrared Millim. Waves,2019,38(6):701~705.]

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历史
  • 收稿日期:2019-03-19
  • 最后修改日期:2019-11-13
  • 录用日期:2019-05-27
  • 在线发布日期: 2019-12-17
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