Abstract

In this paper we report on the use of low-loss fused-silica-plastic optical fibers as magneto-optic current-measuring devices. The fiber is wound around a conductor, and linearly polarized laser light is launched into the fiber core. A current flowing through the conductor will generate a longitudinal magnetic field within the fiber, which in turn will rotate the direction of polarization of the guided light. This so- called Faraday rotation is measured opto- electronically at the fiber end and serves as a measure for the amount of current flow. A precondition for accurate current measurements is that the degree of polarization of the guided light be maintained over the entire fiber length.

© 1979 Optical Society of America

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription