Tunable optical buffer based on VO2/Si hybrid waveguide by optically induced phase transition

被引:0
|
作者
Yuan, Zhen [1 ]
Li, Yi [1 ,2 ]
Dai, Wenyan [1 ]
Lin, Ke [1 ]
He, Weiye [1 ]
Zhang, Haoting [1 ]
Xue, Chang [1 ]
Yan, Junyi [1 ]
Mei, Jincheng [1 ]
Zhuang, Jiaqing [1 ]
Wang, Xingping [1 ]
机构
[1] Univ Shanghai Sci & Technol, Sch Opt Elect & Comp Engn, Shanghai, Peoples R China
[2] Shanghai Key Lab Modern Opt Syst, Shanghai, Peoples R China
基金
芬兰科学院; 国家高技术研究发展计划(863计划);
关键词
optical buffer; vanadium dioxide; racetrack microring resonator; phase transition; METAL-INSULATOR-TRANSITION; DELAY-LINES; DYNAMICS; DESIGN;
D O I
10.1117/1.OE.62.11.117102
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A tunable optical buffer composed of a side-coupled racetrack microring resonator (RMRR) sequence and phase change material vanadium dioxide (VO2) films has been designed and simulated with pass-through and drop functions. By optically induced phase transition of VO2, the number of coupled RMRRs is dynamically controlled to realize the required delay time and the ultra-fast response. Simulation results show that the buffer with 12 RMRRs achieves a tunable delay of up to 309.6 ps, a working bandwidth of 306 GHz, and a super-fast response of 0.62 ps. The delay loss and power consumption are 0.012 dB/ps and 0.194 mW/ps, respectively. These findings suggest a new approach to realizing tunable delay in all-optical networks.
引用
收藏
页数:14
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