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

Fiber Bragg grating sensing system with wavelength-swept-laser distribution and self-synchronization

Not Accessible

Your library or personal account may give you access

Abstract

Fiber Bragg gratings (FBGs) with various interrogation schemes to estimate the FBG’s spectrum shift have been widely used in fiber sensing systems. Wavelength swept laser (WSL) based interrogation architectures have been proposed to offer rapid and high-quality sensing performance. However, for getting higher sensing accuracy, the demands for high-performance WSL may push the system cost. Under these considerations, a WSL distribution architecture allowing multiple sensing processing units (SPUs) to share the WSL is studied in this Letter. A self-synchronization scheme is proposed to enable flexible SPU deployment with no concerns for the clock calibration. The proposed system is experimentally studied. Temperature estimation error of ${\sim}{2.5}^\circ {\rm{C}}$ and ${\sim}{0.5}^\circ {\rm{C}}$ with sensitivities of 0.13°C/ms and 0.14°C/ms, respectively, for the high and small temperature ranges are demonstrated.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical fiber surface waveguide with Fabry–Perot cavity for sensing

Qi Chen, D. N. Wang, Gao Feng, Q. H. Wang, and Y. D. Niu
Opt. Lett. 45(22) 6186-6189 (2020)

High dynamic range distributed acoustic sensing based on dual-wavelength fiber Bragg grating pairs

Jun Wu, Zhengying Li, Xuelei Fu, Minlang Fan, Xin Gui, and Honghai Wang
Opt. Lett. 46(17) 4402-4405 (2021)

Large-scale multiplexed weak reflector array fabricated with a femtosecond laser for a fiber-optic quasi-distributed acoustic sensing system

Mengshi Wu, Chi Li, Xinyu Fan, Changrui Liao, and Zuyaun He
Opt. Lett. 45(13) 3685-3688 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (5)

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

Tables (1)

You do not have subscription access to this journal. Article tables 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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved