Research on key technology of underwater acoustic communication based on Sagnac fiber optic hydrophone

Yan，Liangjun; Huang，Keqin; Chen，Yutao; Yang，Yang; Zhu，Xiaotong; Chen，Xuze; Song，Zhangqi

10.1117/12.2587699

2021

7th Symposium on Novel Photoelectronic Detection Technology and Applications

0277-786X

1996-756X

Proceedings of SPIE - The International Society for Optical Engineering

11763

NOV 05-07, 2020

null,Kunming,PEOPLES R CHINA

1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA

SPIE-INT SOC OPTICAL ENGINEERING

This paper reports a kind of OFDM underwater acoustic communication technology based on Sagnac fiber optic hydrophone. It adopts the fiber optic hydrophone technology based on Sagnac fiber ring composed of 3×3 fiber coupler. The sampling rate of the system is 48kHz, the fiber optic hydrophone can achieve up to 12.3kHz underwater acoustic detection bandwidth and -140dB (0dB re 1rad/ μPa) sound pressure sensitivity. According to the test results of the underwater acoustic communication experiment, the underwater acoustic communication rate is up to 24kbps, the bit error rate is at the magnitude of 10, and the simulation communication rate is up to 100kbps. Sagnac fiber optic hydrophone shows excellent low-frequency suppression ability and simple structure, which are very suitable for underwater acoustic communication.

OFDM Sagnac fiber optic hydrophone Underwater communication

第一 ; 通讯

英语

CPCI-S ; EI

Optics

Optics

WOS:000671015900336

20211410162246

Bit error rate ; Fiber optics ; Fibers ; Hydrophones ; Marine communication

Computer Programming:723.1 ; Fiber Optics:741.1.2 ; Acoustic Waves:751.1 ; Acoustic Devices:752.1

2-s2.0-85103352786

Scopus

School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,518055,China

Yan，Liangjun,Huang，Keqin,Chen，Yutao,et al. Research on key technology of underwater acoustic communication based on Sagnac fiber optic hydrophone[C]. 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA:SPIE-INT SOC OPTICAL ENGINEERING,2021.