Polarization Insensitive Real-Time OWC Enabled by Multi-Mode-Based Beam Shaping via Offset Launch

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-03-19 DOI:10.1109/LPT.2025.3552954

Songyuan Hu;Yunhong Liu;Peng Sun;Xu Zhang;Zichen Liu;Zhixue He;Chao Li

引用次数: 0

Abstract

Optical wireless communication (OWC) utilizing unregulated broadband optical spectrum is regarded as a powerful candidate to meet the requirement for high-speed wireless connectivity. Here we propose a polarization insensitive OWC scheme by using multi-mode based beam shaping (MM-BS) technique via offset launch in a multi-mode fiber (MMF). With the proposed configuration and coherent dual polarization QPSK (DP-QPSK) modulation, a real-time 10 Gb/s optical wireless link over 4.2 m free-space is experimentally demonstrated for multi-user scenario, achieving −38.8 dBm receiver sensitivity and >12cm coverage range. Moreover, a 20 Gb/s PAM4 OWC link over 1.2 m free-space is performed with −22.2 dBm receiver sensitivity and >3.2 cm coverage range. The measured results reveal the feasibility of the proposed scheme to build a high-speed high-performance wireless connectivity.

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基于偏置发射的多模波束整形实现偏振不敏感实时OWC

利用无规宽带频谱的光无线通信（OWC）被认为是满足高速无线连接需求的有力候选者。在多模光纤（MMF）中，我们提出了一种基于多模波束整形（MM-BS）技术的偏振不敏感OWC方案。利用所提出的结构和相干双偏振QPSK （DP-QPSK）调制，实验证明了在4.2 m自由空间上的实时10gb /s光无线链路，实现了−38.8 dBm的接收灵敏度和>12cm的覆盖范围。此外，在1.2 m自由空间上实现了20 Gb/s PAM4 OWC链路，接收器灵敏度为- 22.2 dBm，覆盖范围为>3.2 cm。测试结果表明，该方案能够实现高速高性能无线连接。

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 Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.