Silicon Add-Drop Multiplexer Based on π Phase-Shifted Antisymmetric Bragg Grating

被引：13
作者：
Ma, Yuxin [1 ,2 ,3 ]
Zhao, Yong [1 ,2 ,3 ]
Shi, Yuechun [1 ,2 ,3 ,4 ]
Hao, Lijun [1 ,2 ,3 ]
Sun, Zhenxing [1 ,2 ,3 ]
Hong, Ziming [1 ,2 ,3 ]
Chen, Xiangfei [1 ,2 ,3 ]
机构：
[1] Nanjing Univ, Key Lab Intelligent Opt Sensing & Manipulat, Minist Educ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Peoples R China
[3] Nanjing Univ, Inst Opt Commun Engn, Nanjing 210093, Peoples R China
[4] Nanjing Univ, Suzhou High Tech Inst, Suzhou 215123, Peoples R China
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2021年 / 57卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Add-drop multiplexer; Bragg grating; resonator; METAL-INSULATOR-TRANSITION; VANADIUM DIOXIDE; BROAD-BAND; ROOM-TEMPERATURE; FILTER; PERFORMANCE; RADIATION; FILMS; MICROBOLOMETERS; FABRICATION;
D O I：
10.1109/JQE.2021.3078060
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We proposed a new kind of add-drop multiplexer based on pi phase-shifted antisymmetric Bragg grating (pi-ASBG). Light resonance is formed in the pi-ASBG with mode conversion between backward fundamental transverse electric (TE0) mode and the forward first order transverse electric (T-1) mode. With the aid of the TE1 mode generated in the pi-ASBG, add-drop multiplexer can be designed. As examples, two multiplexer structures based on single-and dual-bus resonator, on silicon-on-insulator (SOI) platform have been studied in detail. Besides, no light is reflected to the input port, if the structure is carefully designed with critical coupling condition satisfied. For the fabricated add-drop multiplexer based on single-bus resonator, the extinction ratio is 23.90 dB and full width at half maximum (FWHM) is 0.33 nm at the through port. For the fabricated add-drop multiplexer based on dual-bus resonator, the extinction ratio is 17.22 dB and FWHM is 0.29 nm at through port. The results show that proposed structures provide a new method to realize add-drop multiplexer and other integrated optical filters for optical communications and sensors.
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页码：1 / 11
页数：11
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