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

Spatially weighted, grating-based, two-mode, elliptical-core optical fiber vibration sensors

Not Accessible

Your library or personal account may give you access

Abstract

Photoinduced refractive-index changes in two-mode, elliptical-core optical fibers affect the beat length and the sensor sensitivity. Chirped gratings are written by attaching such fibers to cantilever beams positioned in a strained state. We show that fibers with in-line chirped gratings, with the chirp being shaped in the form of a vibration-mode shape, can be used as spatially weighted fiber sensors for vibration analysis. We demonstrate enhanced detection of the first and second modes of vibration of a cantilever beam using this process; vibration-mode suppression of the order of 10 dB is obtained.

© 1991 Optical Society of America

Full Article  |  PDF Article
More Like This
Photoinduced refractive-index changes in two-mode, elliptical-core fibers: sensing applications

Ashish M. Vengsarkar, Jonathan A. Greene, and Kent A. Murphy
Opt. Lett. 16(19) 1541-1543 (1991)

Polarimetric analysis of two-mode, elliptical-core optical fibers

Ashish M. Vengsarkar, Brian R. Fogg, Kent A. Murphy, and Richard O. Claus
Opt. Lett. 16(7) 464-466 (1991)

Direct numerical analysis of dual-mode elliptical-core optical fibers

J. Kenneth Shaw, Ashish M. Vengsarkar, and Richard O. Claus
Opt. Lett. 16(3) 135-137 (1991)

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

Equations (8)

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