Optical Generation/Detection of Broadband Microwave Orbital Angular Momentum Modes

被引：7
|
作者：
Huang, Jianou [1 ]
Cao, Zizheng [1 ]
Zhao, Xinran [1 ]
Mang, Xuebing [1 ]
Liu, Yu [2 ,3 ]
Xiang, Yuanjiang [4 ]
Gerini, Giampiero [1 ,5 ]
Koonen, A. M. J. [1 ]
机构：
[1] Eindhoven Univ Technol, Inst Photon Integrat, NL-5600 Eindhoven, Netherlands
[2] Chinese Acad Sci, State Key Lab Integrated Optoelect, Inst Semicond, Beijing 100083, Peoples R China
[3] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
[4] Shenzhen Univ, Minist Educ, Int Collaborat Lab 2D Mat Optoelect Sci & Technol, Shenzhen 518060, Peoples R China
[5] Netherlands Org Appl Sci Res, Opt Dept, NL-2628 Delft, Netherlands
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2020年 / 38卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Circular antenna array; Dammann vortex grating; electrically-controlled optical broadband phase shifter; orbital angular momentum; PHOTONIC PHASE-SHIFTER;
D O I：
10.1109/JLT.2019.2953629
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：
In this article, a novel electrically controlled optical broadband phase shifter (ECO-BPS) is proposed and experimentally investigated for broadband microwave orbital angular momentum (OAM) mode generation. Based on the proposed ECO-BPS and a 17-element circular antenna array, the effect of the phase error on the OAM mode quality is studied by comparing the OAM modes respectively synthesized by three phase schemes: ideal phase shifts, ECO-BPS phase shifts, and optical true time delay phase shifts. In addition, the crosstalk caused by the phase error in applications of OAM modes multiplexing is investigated in a Dammann vortex grating based OAM modes demultiplexing system. All numerical simulation results demonstrate the feasibility of the ECO-BPS in broadband microwave OAM applications.
引用
收藏
页码：1202 / 1209
页数：8
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