Fiber optic four-element hydrophone array

Jiang Yi; Zou Yan

doi:10.1117/12.726524

Fiber optic four-element hydrophone array

Jiang Yi^*, Zou Yan

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

A four-element fiber optic hydrophone array Based on 3×3 coupler terminated Mach-Zehnder interferometer is developed. The 3×3 coupler terminated Mach-Zehnder interferometer is constructed to sense the underwater acoustic signal. Spatial multiplexing of fiber optic hydrophone array is achieved by separating the laser into four channels utilizing combined couplers. For each hydrophone element, a demodulator is used to recover the acoustic signal. This configuration is easily implemented and can detect weak signal in a high noisy water environment. A 4-element, spatially multiplexed system is constructed with a noise equivalent sound pressure of 1.5×10 ^-4Pa / Hz at 1kHz and the frequency range of 80Hz to 1.5 KHz .It has an almost flat response with an average sensitivity of -133dB,and dynamic range of 110dB.

Original language	English
Title of host publication	Fundamental Problems of Optoelectronics and Microelectronics III
DOIs	https://doi.org/10.1117/12.726524
Publication status	Published - 2007
Event	Fundamental Problems of Optoelectronics and Microelectronics III - Harbin, China Duration: 12 Sept 2006 → 14 Sept 2006

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6595 II
ISSN (Print)	0277-786X

Conference

Conference	Fundamental Problems of Optoelectronics and Microelectronics III
Country/Territory	China
City	Harbin
Period	12/09/06 → 14/09/06

Keywords

Fiber optic hydrophone
Interferometer
Multiplexing

Access to Document

10.1117/12.726524

Cite this

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title = "Fiber optic four-element hydrophone array",

abstract = "A four-element fiber optic hydrophone array Based on 3×3 coupler terminated Mach-Zehnder interferometer is developed. The 3×3 coupler terminated Mach-Zehnder interferometer is constructed to sense the underwater acoustic signal. Spatial multiplexing of fiber optic hydrophone array is achieved by separating the laser into four channels utilizing combined couplers. For each hydrophone element, a demodulator is used to recover the acoustic signal. This configuration is easily implemented and can detect weak signal in a high noisy water environment. A 4-element, spatially multiplexed system is constructed with a noise equivalent sound pressure of 1.5×10 -4Pa / Hz at 1kHz and the frequency range of 80Hz to 1.5 KHz .It has an almost flat response with an average sensitivity of -133dB,and dynamic range of 110dB.",

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author = "Jiang Yi and Zou Yan",

year = "2007",

doi = "10.1117/12.726524",

language = "English",

isbn = "0819467278",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

booktitle = "Fundamental Problems of Optoelectronics and Microelectronics III",

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T1 - Fiber optic four-element hydrophone array

AU - Yi, Jiang

AU - Yan, Zou

PY - 2007

Y1 - 2007

N2 - A four-element fiber optic hydrophone array Based on 3×3 coupler terminated Mach-Zehnder interferometer is developed. The 3×3 coupler terminated Mach-Zehnder interferometer is constructed to sense the underwater acoustic signal. Spatial multiplexing of fiber optic hydrophone array is achieved by separating the laser into four channels utilizing combined couplers. For each hydrophone element, a demodulator is used to recover the acoustic signal. This configuration is easily implemented and can detect weak signal in a high noisy water environment. A 4-element, spatially multiplexed system is constructed with a noise equivalent sound pressure of 1.5×10 -4Pa / Hz at 1kHz and the frequency range of 80Hz to 1.5 KHz .It has an almost flat response with an average sensitivity of -133dB,and dynamic range of 110dB.

AB - A four-element fiber optic hydrophone array Based on 3×3 coupler terminated Mach-Zehnder interferometer is developed. The 3×3 coupler terminated Mach-Zehnder interferometer is constructed to sense the underwater acoustic signal. Spatial multiplexing of fiber optic hydrophone array is achieved by separating the laser into four channels utilizing combined couplers. For each hydrophone element, a demodulator is used to recover the acoustic signal. This configuration is easily implemented and can detect weak signal in a high noisy water environment. A 4-element, spatially multiplexed system is constructed with a noise equivalent sound pressure of 1.5×10 -4Pa / Hz at 1kHz and the frequency range of 80Hz to 1.5 KHz .It has an almost flat response with an average sensitivity of -133dB,and dynamic range of 110dB.

KW - Fiber optic hydrophone

KW - Interferometer

KW - Multiplexing

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M3 - Conference contribution

AN - SCOPUS:34249104790

SN - 0819467278

SN - 9780819467270

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Fundamental Problems of Optoelectronics and Microelectronics III

T2 - Fundamental Problems of Optoelectronics and Microelectronics III

Y2 - 12 September 2006 through 14 September 2006

ER -

Fiber optic four-element hydrophone array

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Keywords

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