Design and research of high speed underwater RoFSO link

Shaohua Zhou; Deqiang Ding; Jingyu Wang; Ding Yang; Cheng Bai

doi:10.1117/12.2654821

15 December 2022 Design and research of high speed underwater RoFSO link

Shaohua Zhou, Deqiang Ding, Jingyu Wang, Ding Yang, Cheng Bai

Proceedings Volume 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022); 124783D (2022) https://doi.org/10.1117/12.2654821
Event: Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 2022, Xi'an, China

Abstract

This paper designs and analysis a high speed underwater radio over free space optical (RoFSO) communication link for underwater wireless optical communication application, which mainly consist of 1064nm light source, modulator, periodically poled lithium niobate (PPLN) frequency doubling crystal, optical transceiver antenna and detector. The PPLN frequency doubling crystal is applied to generate 532nm light wave signals with high speed modulation format based on second harmonic generation theory, when a high speed modulated 1064 nm continuous-wave laser signal is inputted. The communication performance of transmitting BPSK modulation format signal of the underwater RoFSO is investigated in Gamma-Gamma ocean turbulence fading channel distribution. The expression of bit error rate (BER) and average outage probability are derived and the results of both theoretical analysis and numerical simulations are obtained by Matlab software in ocean turbulence. The results of numerical simulations show that the communication performance of underwater RoFSO is better than the common OOK direct modulation UWOC system.

Citation Download Citation

Shaohua Zhou, Deqiang Ding, Jingyu Wang, Ding Yang, and Cheng Bai "Design and research of high speed underwater RoFSO link", Proc. SPIE 12478, Thirteenth International Conference on Information Optics and Photonics (CIOP 2022), 124783D (15 December 2022); https://doi.org/10.1117/12.2654821

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KEYWORDS

Ocean optics

Modulation

Turbulence

Signal to noise ratio

Frequency doubling crystals

Radio optics

Wireless communications

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