Abstract

The current sensitivity and bandwidth of the optical fiber current monitor are analyzed. The optimal sensitivity is proportional to the ratio of fiber attenuation to the Verdet constant at a specific fiber length. A selection of compound glasses has been investigated with a view to improving bandwidth and sensitivity over standard silica–fiber systems. A trial fiber of the most promising glass (Schott F7) has been fabricated and characterized.

© 1989 Optical Society of America

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