Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Novel mechanical antialiasing fiber-optic hydrophone with a fourth-order acoustic low-pass filter

Not Accessible

Your library or personal account may give you access

Abstract

A novel mechanical antialiasing interferometric fiber-optic hydrophone with a fourth-order acoustic low-pass filter has been fabricated and demonstrated for the first time to the best of our knowledge. The low-frequency lumped parameters model of the hydrophone is constructed based on the theories of an electroacoustic analogy, and the acoustic performance is predicted by the circuit analysis methods. The measured low-frequency response is very flat, and the acoustic sensitivity is about 140dB with regard to 1radμPa. The system has two measured resonant frequencies, i.e., 850 and 4000Hz, which is in agreement with the simulation results. It is expected that this new type of fiber-optic hydrophone will become an important class of sensors used to eliminate the aliasing in future sonar systems.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Fiber-optic hydrophone using a cylindrical Helmholtz resonator as a mechanical anti-aliasing filter

Zefeng Wang, Yongming Hu, Zhou Meng, and Ming Ni
Opt. Lett. 33(1) 37-39 (2008)

DFB fiber laser hydrophone with band-pass response

Faxiang Zhang, Wentao Zhang, Fang Li, and Yuliang Liu
Opt. Lett. 36(22) 4320-4322 (2011)

Sensitivity enhanced fiber optic hydrophone based on an extrinsic Fabry-Perot interferometer for low-frequency underwater acoustic sensing

Wanze Xiong, Qian Shu, Ping Lu, Wanjin Zhang, Zhiyuan Qu, Deming Liu, and Jiangshan Zhang
Opt. Express 30(6) 9307-9320 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (12)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved