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

来源：

OPTICAL ENGINEERING | 2023年 / 62卷 / 11期

基金：

国家高技术研究发展计划(863计划); 芬兰科学院;

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

页数：14

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