Full-photonics up- and downconversions for W-band 16-QAM signal wireless delivery over 30.4 km with advanced equalizations.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-07-01 DOI:10.1364/OL.559019

Dianyuan Ping, Qichao Lu, Junhao Zhao, Li Tao, Boyu Dong, Yinjun Liu, Shuhong He, Renjie Li, Jianyang Shi, Nan Chi, Junwen Zhang

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引用次数: 0

Abstract

We have experimentally demonstrated a communication system with an ultra-long sea surface wireless distance of 30.4 km and high-speed 16-quadrature amplitude modulation (16-QAM) data transmission at the W-band based on full-photonics up- and downconversion technology. Utilizing a frequency- and phase-locked optical two-tone generator, the transceiver ensures a stable millimeter-wave (mmW) signal at 76.4 GHz for transmission. Furthermore, we proposed a Volterra nonlinear equalization (VNLE) algorithm to compensate for nonlinear damage in signal transmission. Thanks to full-photonics conversion technology and advanced post-equalization digital signal processing algorithms, we have achieved a data transmission rate of 16 Gb/s 16-quadrature amplitude modulation (16-QAM) signal over a sea surface distance of 30.4 km. It is worth noting that as a special type of channel, water vapor density and atmospheric conditions will greatly affect the signal transmission. To the best of our knowledge, this is the first demonstration of a full-photonics 16-QAM signal exceeding 30 km at the W-band on a single channel, achieving a rate-distance product of 16 Gb/s × 30.4 km = 486.4 Gbps·km.

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全光子上下转换w波段16-QAM信号无线传输超过30.4公里与先进的均衡。

我们实验演示了一种基于全光子上下转换技术的超长海面无线距离30.4 km和w波段高速16正交调幅（16-QAM）数据传输的通信系统。利用锁频锁相光双音发生器，收发器确保在76.4 GHz传输稳定的毫米波（mmW）信号。此外，我们提出了Volterra非线性均衡（VNLE）算法来补偿信号传输中的非线性损伤。利用全光子转换技术和先进的后均衡数字信号处理算法，我们实现了在30.4 km海面上传输速率为16gb /s的16正交调幅（16- qam）信号。值得注意的是，作为一种特殊类型的信道，水汽密度和大气条件都会对信号的传输产生很大的影响。据我们所知，这是第一次在单信道上展示了在w波段超过30公里的全光子16- qam信号，实现了16 Gb/s × 30.4 km = 486.4 Gbps·km的速率距离乘积。

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 letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.