Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 14,
  • Issue 1,
  • pp. 010601-
  • (2016)

Field-programmable gate array-based large-capacity sensing network with 1642 ultra-weak fiber Bragg gratings

Not Accessible

Your library or personal account may give you access

Abstract

A field-programmable gate array (FPGA)-based large-capacity sensing network with ultra-weak fiber Bragg gratings (FBGs) is proposed and experimentally studied. The demodulation system is constructed to interrogate 1642 serial time-division-multiplexing FBGs with a peak reflectivity of about −40 dB and equal separations of 2.5 m. Two semiconductor optical amplifiers and an InGaAs linear sensor array controlled by an FPGA are introduced to the demodulation system to achieve fast, precise, and flexible interrogation. The low crosstalk and spectral distortion are investigated through both theoretical analysis and experiments.

© 2016 Chinese Laser Press

PDF Article
More Like This
A time- and wavelength-division multiplexing sensor network with ultra-weak fiber Bragg gratings

Zhihui Luo, Hongqiao Wen, Huiyong Guo, and Minghong Yang
Opt. Express 21(19) 22799-22807 (2013)

Large-capacity multiplexing of near-identical weak fiber Bragg gratings using frequency-shifted interferometry

Yiwen Ou, Ciming Zhou, Li Qian, Dian Fan, Chunfu Cheng, and Huiyong Guo
Opt. Express 23(24) 31484-31495 (2015)

Novel polyimide coated fiber Bragg grating sensing network for relative humidity measurements

Wei Bai, Minghong Yang, Jixiang Dai, Haihu Yu, Gaopeng Wang, and Chongjie Qi
Opt. Express 24(4) 3230-3237 (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