Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 28,
  • Issue 12,
  • pp. 1844-1850
  • (2010)

Sensitivity Enhancement in Composite Cavity Fiber Laser Hydrophone

Not Accessible

Your library or personal account may give you access

Abstract

We report an application of composite cavity fiber laser (CCFL) for hydrophone sensitivity enhancement. While most of the sensitivity enhancement methods rely on amplification of acoustic signal by the coating design, our proposed scheme exploits the inherently nonlinear phase condition of the CCFL. A particular point of interest for CCFL hydrophone application is the proposed partial cavity sensing scheme that, when only one cavity is made responsive, a substantial sensitivity enhancement can be achieved. Theoretical analysis shows that this scheme can significantly enhance sensitivity, achieving as high as 40 dB excess to the standard response of a bare fiber. In experiment, this scheme produced a mean responsivity of ${-}41.1$ dB re rad Pa$^{-1}$, representing an improvement in sensitivity by 14 dB compared to the standard response. Evidently, this CCFL sensing scheme provides an additional means for sensitivity improvement in conjunction to the conventional packaging technique.

© 2010 IEEE

PDF Article
More Like This
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)

DFB fiber laser hydrophone with band-pass response

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

Highly sensitive fiber laser ultrasound hydrophones for sensing and imaging applications

Di Liu, Yizhi Liang, Long Jin, Huojiao Sun, Linghao Cheng, and Bai-Ou Guan
Opt. Lett. 41(19) 4530-4533 (2016)

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

Select as filters


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