Short- to Long-Reach WDM Access Network With Free Space Optical Traffic Link

IF 2.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2025-09-09 DOI:10.1109/JPHOT.2025.3608203

Chien-Yu Liao;Tsu-Hsin Wu;Chien-Hung Yeh;Wen-Paio Lin;Yu-Heng Lin;Shien-Kuei Liaw

引用次数: 0

Abstract

In this paper, we demonstrate a free space optical (FSO) wavelength-division-multiplexing passive optical network (WDM-PON) architecture with short-reach to long-reach fiber transmission to overcome different environments and geographical restrictions. Based on the periodic nature of the 2×N arrayed waveguide grating (AWG), the downstream and upstream wavelengths in the proposed fiber access network are offset by one channel to enable symmetric FSO data transmission. Thus, the Rayleigh backscattering (RB) beat noise can be mitigated fully. Four WDM channels are selected to transmit wireless FSO signals over the proposed PON architecture, each utilizing different modulation rates and fiber transmission distances for demonstration. In addition, the corresponding bit error rate (BER), detected power sensitivity and power budget of each WDM FSO signal are also analyzed and discussed.

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具有自由空间光业务链路的短距离到长距离WDM接入网

在本文中，我们展示了一种自由空间光（FSO）波分复用无源光网络（WDM-PON）架构，该架构具有短距离到长距离的光纤传输，以克服不同的环境和地理限制。基于2×N阵列波导光栅（AWG）的周期性特性，所提出的光纤接入网的下行和上行波长被一个信道偏移，以实现对称的FSO数据传输。因此，可以充分减轻瑞利后向散射（RB）噪声。选择四个WDM信道在拟议的PON架构上传输无线FSO信号，每个信道使用不同的调制速率和光纤传输距离进行演示。此外，还对每个波分复用FSO信号的误码率、检测功率灵敏度和功率预算进行了分析和讨论。

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

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.