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Application of laser-induced acoustic method on air-underwater communication

  • School of Information Science and Engineering, Harbin Institute of Technology Weihai
  • Qilu University of Technology
  • Macau University of Science and Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Laser-induced acoustic (LIA) technology is a possible way of communicating from an air-based platform to the underwater target in the sea. The present paper introduces a method of LIA which works in the optical breakdown mechanism. Acoustic signals with high energy were generated in the optical breakdown mechanism of a Nd: YAG laser having pulse widths about 10 ns. A DFB-FL hydrophone was designed to receive the LIA signals for the various repeated frequency of the pulsed laser. It was found that LIA signals with repeated frequency ranging from 1 to 20Hz can be detected clearly, which demonstrated the feasibility of across air-underwater communication by using LIA technology. Simulation of LIA in a distance of 400m between laser spot on the water surface and the hydrophone was performed by the COMSOL Multiphysic software. The simulated results show the communicated ability of LIA technology in the long distance.

Original languageEnglish
Title of host publicationProceedings - 2021 IEEE International Conference on Space-Air-Ground Computing, SAGC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages77-82
Number of pages6
ISBN (Electronic)9781665400114
DOIs
StatePublished - 2021
Externally publishedYes
Event2021 IEEE International Conference on Space-Air-Ground Computing, SAGC 2021 - Huizhou, Guangdong, China
Duration: 23 Oct 202125 Oct 2021

Publication series

NameProceedings - 2021 IEEE International Conference on Space-Air-Ground Computing, SAGC 2021

Conference

Conference2021 IEEE International Conference on Space-Air-Ground Computing, SAGC 2021
Country/TerritoryChina
CityHuizhou, Guangdong
Period23/10/2125/10/21

Keywords

  • Laser-induced acoustic
  • air
  • communication
  • underwater

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