Title
Optical Generation/Detection of Broadband Microwave Orbital Angular Momentum Modes
Author
Huang, J.
Cao, Z.
Zhao, X.
Zhang, X.
Liu, Y.
Xiang, Y.
Gerini, G.
Koonen, A.M.J.
Publication year
2020
Abstract
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.
Subject
Circular antenna array
Dammann vortex grating
Electrically-controlled optical broadband phase shifter
Orbital angular momentum
To reference this document use:
http://resolver.tudelft.nl/uuid:f57202aa-f8d3-48bc-8b2b-947cac1e4013
DOI
https://doi.org/10.1109/jlt.2019.2953629
TNO identifier
875544
Publisher
Institute of Electrical and Electronics Engineers IEEE
ISSN
0733-8724
Source
Journal of Lightwave Technology, 38 (6), 1202-1209
Article number
8902121
Document type
article