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

Bragg intragrating structural sensing

Not Accessible

Your library or personal account may give you access

Abstract

When a fiber-optic intracore Bragg grating is subject to an appreciable strain gradient, its reflective spectrum will not only be shifted but also be distorted because of the chirp of the grating. We employed the T-matrix formalism to calculate the influence of different strain gradients on the reflective spectra of Bragg gratings and have undertaken experiments to test these calculations. The results of these experiments have confirmed that intracore Bragg gratings can be used to evaluate strain gradients and can be thought of as quasi-distributed strain sensors. This adds a new dimension to structural sensing, permitting measurements in any situation where strain gradients exist. It also provides a warning of any sensor/host debonding.

© 1995 Optical Society of America

Full Article  |  PDF Article
More Like This
Phase-based Bragg intragrating distributed strain sensor

S. Huang, M. M. Ohn, and R. M. Measures
Appl. Opt. 35(7) 1135-1142 (1996)

From the reflected spectrum to the properties of a fiber Bragg grating: a genetic algorithm approach with application to distributed strain sensing

Federico Casagrande, Paola Crespi, Anna Maria Grassi, Alfredo Lulli, Robert P. Kenny, and Maurice P. Whelan
Appl. Opt. 41(25) 5238-5244 (2002)

Intracore fiber Bragg gratings for strain measurement in embedded composite structures

V. M. Murukeshan, P. Y. Chan, Lin Seng Ong, and A. Asundi
Appl. Opt. 40(1) 145-149 (2001)

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 (10)

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 (15)

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