New approach to microbending fiber optic sensors: varying the spatial frequency

Betty Lise Anderson; Jill A. Brosig

doi:10.1117/12.183989

1 January 1995 New approach to microbending fiber optic sensors: varying the spatial frequency

Betty Lise Anderson, Jill A. Brosig

Author Affiliations +

Optical Engineering, Vol. 34, Issue 1, (January 1995). https://doi.org/10.1117/12.183989

Abstract

A new approach to fiber optic microbending sensors is demonstrated, in which the spatial frequency of the bends, rather than of the amplitude, is varied. This scheme has the potential for greatly increased sensitivity, greater flexibility of design, and longer lifetime. The fiber is prebent and embedded in a compliant material, and the spatial frequency is chosen to bias the sensor on the steep slope of the resonance in the loss curve. Compression in the longitudinal direction causes a dramatic change in the transmission. Sensitivity depends on the resonance slope, which is controlled by bend number, bend shape, and bend amplitude. In conventional microbend sensors, friction and abrasion severely limit the number of bends, and the maximum bend amplitudes and bend shapes cannot be controlled. In the new approach, all three parameters can be independently controlled, resulting in greater design flexibility,high sensitivity, and a long sensor life.

Citation Download Citation

Betty Lise Anderson and Jill A. Brosig "New approach to microbending fiber optic sensors: varying the spatial frequency," Optical Engineering 34(1), (1 January 1995). https://doi.org/10.1117/12.183989

Published: 1 January 1995

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available