Fiber Optic Sensor System Using Birefringent Filters For Spectral Encoding

Friedhelm Dorsch; Reinhard Ulrich

doi:10.1117/12.949318

23 February 1989 Fiber Optic Sensor System Using Birefringent Filters For Spectral Encoding

Friedhelm Dorsch, Reinhard Ulrich

Proceedings Volume 1011, Fiber Optic Sensors III; (1989) https://doi.org/10.1117/12.949318
Event: 1988 International Congress on Optical Science and Engineering, 1988, Hamburg, Germany

Abstract

A system of multimode fiber optic sensors is described for the remote measurement of position, angle, force, pressure and other measurands that can be converted into a rotation of polarization. A birefringent filter encodes the polarization angle into the power ratio of two interleaved comb spectra or, in a modified implementation, into the absolute spectral position of a comb spectrum. By using identical filters in all transducers and in the evaluation unit, transducers for the same or different measurands become interchange-able. All sensors are of the incremental type, with accuracies reaching 0.5 % of one period of the measurand, independent of variations in the attenuation of the fiber link of up to 20dB.

Citation Download Citation

Friedhelm Dorsch and Reinhard Ulrich "Fiber Optic Sensor System Using Birefringent Filters For Spectral Encoding", Proc. SPIE 1011, Fiber Optic Sensors III, (23 February 1989); https://doi.org/10.1117/12.949318

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