Polarization mode dispersion in radio-frequency interferometric embedded fiber-optic sensors
Abstract
The effect of fiber birefringence on the propagation delay in an embedded fiber-optic strain sensor is studied. The polarization characteristics of the sensor are described in terms of polarization mode dispersion through the principal states of polarization and their differential group delay. Using these descriptors, an analytical expression for the response of the sensor for an arbitrary input state of polarization is given and experimentally verified. It is found that the differential group delay, as well as the input and output principal states of polarization, vary when the embedded fiber is strained, leading to fluctuations in the sensor output. The use of high birefringence fibers and different embedding geometries is examined as a means for reducing the polarization dependency of the sensor.
Additional Information
© Copyright 2001 IEEE. Reprinted with permission. Manuscript received May 15, 2000; revised December 27, 2000. This research was supported in part by the Israeli Ministry of Science and Technology. The work of A. Eyal was supported by the Eshkol Fellowship of the same ministry.Files
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Additional details
- Eprint ID
- 6635
- Resolver ID
- CaltechAUTHORS:EYAjlt01
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2006-12-16Created from EPrint's datestamp field
- Updated
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2021-11-08Created from EPrint's last_modified field