Study on light source techniques of underwater full-duplex optical communication system

Demao Ye; Zenan Zhang; Bo Yang; Yantao Wang

doi:10.1117/12.2505474

12 December 2018 Study on light source techniques of underwater full-duplex optical communication system

Demao Ye, Zenan Zhang, Bo Yang, Yantao Wang

Proceedings Volume 10849, Fiber Optic Sensing and Optical Communication; 108490Z (2018) https://doi.org/10.1117/12.2505474
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

The traditional underwater laser communication system has less electro-optic conversion efficiency, short lifetime, large volume, low reliability and complex communication systems. Meanwhile, Underwater communication system with bandwidth above 1Mbps level is in urgent need. To solve these problems, a novel LED optical communication system is present which based on full-duplex mode. In order to improve the communication distance and reduce the influence of backscattering and reflection light, a novel method of blue light LED array placement is proposed. A practical optical attenuation estimation algorithm based on different chlorophyll concentration is used to evaluate the feasibility of 50m underwater communication link distance. The MATLAB numerical calculation are given. The simulation results show that the design method of LED array light source proposed in this paper has small size, light weight and simple structure, which can be applied to underwater optical communication in low channel attenuation, Mbps level bandwidth and long distance(>50m).

Citation Download Citation

Demao Ye, Zenan Zhang, Bo Yang, and Yantao Wang "Study on light source techniques of underwater full-duplex optical communication system", Proc. SPIE 10849, Fiber Optic Sensing and Optical Communication, 108490Z (12 December 2018); https://doi.org/10.1117/12.2505474

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KEYWORDS

Optical communications

Signal attenuation

Light emitting diodes

Ocean optics

Geometrical optics

Telecommunications

Transmitters

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