Generation of OAM Beams Using Circular Ring Array With In …
The usual OAM generation methods based on phase-shifted circular ring arrays require a complex feed network. In this article, a ring array with low-order OAM single antennas as the …
1-Pbps orbital angular momentum fibre-optic transmission
2022年7月5日 · By exploiting the unique propagation characteristics of orbital angular momentum (OAM) modes in ring core fibres (RCFs), a system that combines SDM and C + L band dense …
Realization of circular polarized multiple band multi-mode OAM …
2023年10月10日 · In this paper, a ring patch antenna is designed to excite different OAM states at different frequencies simultaneously. First, characteristic mode analysis is used to analyze the …
Mode manipulation in a ring–core fiber for OAM monitoring and …
The monitoring and conversion of photonic orbital angular momentum (OAM) play fundamental and important roles for both classic and quantum technologies, especially in low-loss …
Design and Fabrication of a Weakly-Coupled OAM Ring-Core …
We propose a center-raised ring-core fiber (RCF), which can support 5-mode-group-multiplexed multiple-input and multiple-output free (MIMO-free) transmission. The center region in the …
Highly-twisted states of light from a high quality factor photonic ...
2023年2月27日 · Twisted light with orbital angular momentum (OAM) has been extensively studied for applications in quantum and classical communications, microscopy, and optical...
OAM-generating method based on concentric-ring array using …
Abstract: For OAM-based communications and target detection purposes, the OAM-generating method based on planar antenna and the concentric-ring array is proposed, which can …
Mode analysis of orbital angular momentum modes carrying …
2021年11月15日 · We discuss the mode properties for orbital angular momentum (OAM) modes supporting multi-mode ring-core fiber (MM-RCF). For strongly-guiding MM-RCF, by introducing …
Trench-assisted multi-ring-core fiber for orbital angular …
2023年9月1日 · The proposed OAM-carrying fiber shows high potential in MDM and SDM optical communication systems, with high OAM mode number and low inter-ring crosstalk at low …
中山大学Lu, Quanchao：支持5模群复用无MIMO传输的弱耦合OAM …
2023年1月1日 · 本文提出了一种新型的光纤——弱耦合OAM环芯光纤，它可以支持更多的弱耦合MG，从而提高了单光纤的传输容量。此外，研究者们还制备了5个MG的RCF，并且演示了它 …