Experimental Investigation on Underwater Opto-Acoustic Communication

Abstract:

The underwater opto-acoustic communication system for directional acoustic communication between an in-air platform and a submerged platform operating is important. The paper presents a new method to solve this problem with opto-acoustic technology, which combines high-energy laser, the opto-acoustic transmitter that optical energy is converted to acoustic energy at the water surface. The laser-based transmitter provides a versatile method for generating underwater sound. The acoustic pressure is linearly proportional to the laser power. The paper designed an experimental measurement system for the opto-acoustic communication. It made experiments for study on the waveform and spectrum characteristics of opto-acoustic signals. The paper also discuss the acoustic wave after optical breakdown in water with Nd:YAG laser pulses. The opto-acoustic signals can controll by adjusting the laser's parameters. The conclusion is that the opto-acoustic communication has some technical advantages. This system presents a change in the way communicational from the air.

• Periodical: Applied Mechanics and Materials (Volumes 143-144)
• Pages: 653-657
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.143-144.653
• Online since: December 2011
• Authors: Tao Liu, Jian Gan Wang, Si Guang Zong
• Keywords: Opto-Acoustic, Acoustic Signal, Laser-Induced Acoustic, Underwater Communication

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