A new 100 m/500 Mbps Underwater Optical Wireless Communication System

Significance 

Information and communication technologies play more and more critical roles in the modern exploration of the ocean, leading to deep understanding of creature evolution, natural resource development, and national security. Underwater communication helps to collect and exchange information among autonomous underwater vehicles (AUVs), submarines, ships on the water surface, divers, people on board, location tracking of underwater athletes, and so on.

Underwater optical wireless communication (UOWC) technology offers advantages over long-wave radio frequency and underwater acoustic communications in high data rate, low latency, and high security. However, extending its communication distance and increasing data rate have been hindered by strong water absorption, scattering and turbulence.

Recently, Jiemei Wang, Chunhui Lu, Dr. Shangbin Li, and Professor Zhengyuan Xu at University of Science and Technology of China (USTC) proposed an effective experimental approach to counteract the water distortion by a novel experimental design and advanced signal processing techniques. They demonstrated an experimental long-distance high-speed UOWC system, achieving 100m/500Mbps based on a 10m-long water tank. The water quality in their experimental system was comparable to that of pure seawater in terms of their measured extinction coefficient and thus might simulate a deep-ocean communication environment. They also predicted a communication performance of 146m/500Mbps and 174m/100Mbps through the same water. This performance has achieved a great breakthrough and significantly advanced the state-of-art in range-rate performance of underwater communication.

100 m/500 Mbps Underwater Optical Wireless Communication Using an NRZ-OOK Modulated 520 nm Laser Diode - Advances in Engineering

About the author

Jiemei Wang, a postgraduate student at the Optical Wireless Communication and Network Center, University of Science and Technology of China, Hefei 230027, P.R. China.

Research Interests:

  1. OFDM Communication System
  2. Underwater long-distance laser communication.

Email: [email protected]

About the author

Chunhui Lu, a postgraduate student at the Optical Wireless Communication and Network Center, University of Science and Technology of China, Hefei 230027, P.R. China.

Research interests

  1. Underwater scattering communication
  2. Underwater long-distance laser communication

Email: [email protected]

About the author

Shangbin Li, an Associate Research Professor at the Optical Wireless Communication and Network Center, University of Science and Technology of China, Hefei 230027, P.R. China.

Research interests

  1. Optoelectronics and optical devices
  2. Optical wireless communications

Email: [email protected]

About the author

Zhengyuan Xu, Ph.D. and Professor, Director of Optical Wireless Communication and Network Center, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China

Research Interests

  1. Optical and wireless communications
  2. Big data and artificial intelligence

Email: [email protected]

Google ScholarResearch gate

Reference

Jiemei Wang, Chunhui Lu, Shangbin Li, Zhengyuan Xu. 100 m/500 Mbps underwater optical wireless communication using an NRZ-OOK modulated 520 nm laser diode. Optics Express, volume 27, no. 9 (2019) page 12171-12181.

Go To Optics Express

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