Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 19,
  • Issue 5,
  • pp. 687-
  • (2001)

Large-Scale Multiplexing of Interferometric Fiber-Optic Sensors Using TDM and DWDM

Not Accessible

Your library or personal account may give you access

Abstract

This paper describes multiplexing schemes for interferometric fiber sensors based on time-division multiplexed and dense wavelength-division multiplexing using optical add/drop multiplexers. The results of an experimental arrangement, which is based on one of the architectures, is also presented. Topics include a discussion of the noise sources in the system, dynamic range,and a characterization of the distributed feedback fiber laser source noise. We show the crosstalk levels in the experimental arrangement to be between -47 and -76 dB depending on the mechanism involved. The multiplexing schemes demonstrate the potential to address at least 192 interferometric sensors through two fibers based on a system with six wavelengths with a phase resolution less than 20 µrad/vHz. For application to sonar arrays, our analysis has shown that hydrophones multiplexed in this type of architecture would achieve ambient acoustic noise-limited pressure resolution with an in-water dynamic range up to 135 dB at frequencies up to 10 kHz. In general, these architectures would find application in systems requiring very large numbers of sensors with a minimum of telemetry cabling required.

© 2001 IEEE

PDF Article
More Like This
High-quality hybrid TDM/DWDM-based fiber optic sensor array with extremely low crosstalk based on wavelength-cross-combination method

Zhongjie Ren, Ke Cui, Jianxin Li, Rihong Zhu, Qing He, Hailing Wang, Shaokun Deng, and Wenjun Peng
Opt. Express 25(23) 28870-28885 (2017)

Large-scale interferometric fiber sensor arrays with multiple optical amplifiers

C. W. Hodgson, M. J. F. Digonnet, and H. J. Shaw
Opt. Lett. 22(21) 1651-1653 (1997)

Laser frequency noise correction in LFM-based interferometric fiber-optic hydrophone array

Mengyuan Zhao, Ying Mao, Zexu Wang, Qizhuang Cen, Feifei Yin, Kun Xu, and Yitang Dai
Opt. Express 31(17) 27482-27493 (2023)

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