Ultra-compact efficient mode converter with metamaterial structures

被引：6
|
作者：
Zhang, Jingjing [1 ]
Qiu, Pengfei [1 ]
Ren, Yunpeng [1 ]
Chen, Xuefeng [1 ]
Dai, Zijie [1 ]
Song, Xiaoxian [1 ]
Yang, Junbo [2 ]
Huang, Lijing [1 ]
Guo, Kai [3 ]
机构：
[1] Jiang Su Univ, Inst Mirco Nano Optoelect & Terahertz Technol, Zhenjiang 210010, Jiangsu, Peoples R China
[2] Natl Univ Def Technol, Dept Phys, Changsha 410073, Peoples R China
[3] AMS Beijing, Inst Syst Engn, Beijing 100141, Peoples R China
来源：
INFRARED PHYSICS & TECHNOLOGY | 2022年 / 125卷
基金：
中国国家自然科学基金;
关键词：
Modeconverters; Metamaterial Structures; Telecommunication wavelength; DIRECTIONAL-COUPLERS; MULTIPLEXER; DEVICES;
D O I：
10.1016/j.infrared.2022.104200
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Mode converters play a key role in the mode division multiplexing, which is an emerging technology to enlarge the information transmission capacity. The footprint and the performance of the mode converters are essential for the compact and energy-efficient integrated photonics. We numerically and experimentally demonstrate an on-chip multimode-interferometer-based mode converter, between the one-order mode and the fundamental mode, using metamaterial structures for phase shift and crosstalk suppression, and significantly reduce the footprint. The fabricated device has a high conversion efficiency of 79% and a broad 3 dB bandwidth of >50 nm, with an ultra-small footprint of only 2.4 x 8.9 mu m2.
引用
收藏
页数：5
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