红外与毫米波学报2019，Vol.38Issue(6)：701-705,5.DOI:10.11972/j.issn.1001-9014.2019.06.004
基于二氧化硅平面光波导的强度均衡的光脉冲对的产生
Generation of an intensity-balanced optical pulse couple based on silica planar lightwave circuit
摘要
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 re-sults 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.关键词
非对称MZI干涉仪/热场模拟/量子密钥分发Key words
asymmetric Mach-Zehnder interferometer/thermal field simulation/quantum key distribution分类
信息技术与安全科学引用本文复制引用
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):701-705,5.基金项目
Supported by National Key R &D Program of China(2018YFA0306403),National Nature Science Foundation of China(61805232, 61435013),and K. C. Wong Education Foundation. （2018YFA0306403）
