Class 1 Eye-Safe Formally Invisible Underwater Optical Wireless Communication System

IF 2.1 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Journal Pub Date : 2024-07-10 DOI:10.1109/JPHOT.2024.3426284

Ayumu Kariya;Keita Tanaka;Fumiya Kobori;Kiichiro Kuwahara;Shogo Hayashida;Takahiro Kodama

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引用次数: 0

Abstract

When using underwater optical wireless communication in areas close to human habitats— such as shallow sea areas—specifications for highly-secure, large-capacity optical transceivers are required. Real-time transmission of 850 nm, direct-current optical orthogonal frequency division multiplexing signals for full-duplex underwater invisible light communication has been achieved. We experimentally confirmed that subcarrier adaptive modulation could transmit at maximum capacity depending on the transmission distance, while changing the transmission distance in shallow seawater channels. We confirmed that there was no disturbing influence due to sunlight by using a honeycomb structure for sunlight shielding. Moreover, we found that the effect of disruption caused by the sea surface vibrating due to the 3 m/s wind speed did not affect the signal quality. 4K video streaming is also done on a 1.2 m underwater channel transmission. To the best of our knowledge, this is the first report of full-duplex transmission of invisible-band underwater optical wireless communication for shallow waters.

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1 级护眼正式隐形水下光学无线通信系统

在靠近人类栖息地的区域（如浅海区域）使用水下光无线通信时，需要高安全性、大容量的光收发器。我们已经实现了用于全双工水下隐形光通信的 850 nm 直流正交频分复用信号的实时传输。我们通过实验证实，子载波自适应调制可根据传输距离以最大容量进行传输，同时改变浅层海水信道中的传输距离。通过使用蜂巢结构遮挡阳光，我们确认不会受到阳光的干扰。此外，我们还发现，3 米/秒的风速引起的海面振动所造成的干扰不会影响信号质量。4K 视频流也是通过 1.2 米的水下信道传输完成的。据我们所知，这是第一份关于浅水区隐形波段水下光无线通信全双工传输的报告。

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.