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10 May 2019 Research on underwater high-speed blue-green optical communication technology based on blue LD array
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Proceedings Volume 11068, Second Symposium on Novel Technology of X-Ray Imaging; 110680U (2019) https://doi.org/10.1117/12.2523916
Event: Second Symposium on Novel Technology of X-Ray Imaging, 2018, Hefei, China
Abstract
In underwater wireless optical communication (UWOC), one of the key technologies is to generate high-speed communication signal for transmitter. In this paper, we designed such transmitter based on laser diode (LD) arrays, which is composed of three LDs with central wavelength 450nm. The modulation format is non-return-to-zero on-off keying (NRZ-OOK) with data rate up to 50Mbps. Using such transmitter, we established a point-to-point underwater wireless optical communication link in an experimental tank with 20m length, 20m width and 14 depth. The experimental results show that the maximum error-free data rate of the system can reach 50Mbps with 10.7m transmission distance, while the maximum error-free transmission rate is 30Mbps with 14.7m transmission distance. These results verify the feasibility of the LD-based modulation scheme for high-speed UWOC applications.
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Yi Han, Yunqiang Zheng, Kui Shi, Tao Wang, Xiaoping Xie, Jiacheng Meng, Wei Wang, Tao Duan, Biao Han, Rengang Wan, and Kelin Sun "Research on underwater high-speed blue-green optical communication technology based on blue LD array", Proc. SPIE 11068, Second Symposium on Novel Technology of X-Ray Imaging, 110680U (10 May 2019); https://doi.org/10.1117/12.2523916
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