External light-concentrating structures designed for fluorescent antennas based on refractive index modulation.

IF 3.2 2区 物理与天体物理 Q2 OPTICS
Optics express Pub Date : 2025-01-27 DOI:10.1364/OE.551554
Yibo Wang, Zhe Lv, Yang Wang, Jingzhou Li, Hongxing Dong, Long Zhang
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引用次数: 0

Abstract

Fluorescent antennas (FAs) exhibit considerable promise in optical wireless communication (OWC), primarily due to their advantages over conventional optical systems in terms of optical gain and field of view (FoV). This paper presents a COMSOL-based model designed to optimize external light-concentrating structures for FAs, with its accuracy validated through both qualitative and quantitative comparisons. Leveraging refractive index modulation and the conservation of optical étendue, two distinct light-concentrating structures are developed. The first structure couples the FA with an array of optical fibers, achieving up to a 1.5-fold increase in optical power density at the emitting surface. The second structure integrates the FA with a Compound Parabolic Concentrator (CPC), incorporating media of varying refractive indices. When refractive index matching is achieved with commonly used silicon-based detectors, this structure theoretically enhances optical power density by approximately 2.5 times. Compared to prior designs aimed at improving FA performance, the external light-concentrating structures proposed here improve the system's SNR without significantly affecting other device performance metrics.

基于折射率调制的荧光天线外部聚光结构设计。
荧光天线(FAs)在光学无线通信(OWC)中表现出相当大的前景,主要是由于它们在光学增益和视场(FoV)方面优于传统光学系统。本文提出了一个基于comsol的模型,用于优化FAs的外部聚光结构,并通过定性和定量比较验证了其准确性。利用折射率调制和光变守恒,开发了两种不同的光聚光结构。第一种结构将FA与光纤阵列耦合,使发射表面的光功率密度增加了1.5倍。第二种结构集成了FA和复合抛物面聚光器(CPC),结合了不同折射率的介质。当与常用的硅基探测器实现折射率匹配时,该结构理论上可将光功率密度提高约2.5倍。与先前旨在提高FA性能的设计相比,本文提出的外部聚光结构提高了系统的信噪比,而不会显著影响其他器件性能指标。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Optics express
Optics express 物理-光学
CiteScore
6.60
自引率
15.80%
发文量
5182
审稿时长
2.1 months
期刊介绍: Optics Express is the all-electronic, open access journal for optics providing rapid publication for peer-reviewed articles that emphasize scientific and technology innovations in all aspects of optics and photonics.
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