Wavelength design and optical axis correction for bidirectional underwater laser communication with ATP

Juan Wang; Zhe Li

doi:10.1117/12.3032098

8 June 2024 Wavelength design and optical axis correction for bidirectional underwater laser communication with ATP

Juan Wang, Zhe Li

Proceedings Volume 13171, Third International Conference on Algorithms, Microchips, and Network Applications (AMNA 2024); 1317116 (2024) https://doi.org/10.1117/12.3032098
Event: 3rd International Conference on Algorithms, Microchips and Network Applications (AMNA 2024), 2024, Jinan, China

Abstract

This paper addresses the issues of wavelength selection and isolation for underwater full-duplex laser communication automatic tracking of beacon light signals. A method for four-wavelength reception and transmission isolation in the blue-green light band is proposed, which utilizes watt-level semiconductor lasers to achieve beacon light signals with orders of magnitude divergence angles, aiding in rapid acquisition and alignment. The underwater transmission distance of beacon light is close to that of signal light with small divergence angles. Additionally, the hemispherical dome used for waterproof sealing in the underwater laser communication ATP device has a significant impact on the alignment consistency of beacon light and signal light axes. This paper simulates the non-parallelism of underwater optical axes using ray tracing and corrects the non-parallelism of underwater optical axes by presetting a reverse bias angle, addressing the feasibility issue of independent beacon light application in underwater ATP devices and improving the performance of underwater laser communication.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Juan Wang and Zhe Li "Wavelength design and optical axis correction for bidirectional underwater laser communication with ATP", Proc. SPIE 13171, Third International Conference on Algorithms, Microchips, and Network Applications (AMNA 2024), 1317116 (8 June 2024); https://doi.org/10.1117/12.3032098

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