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
Original Manuscript: August 16, 1988
Published: June 1, 1989
Henry O. Edwards, Kazimierz P. Jedrzejewski, Richard I. Laming, and David N. Payne, "Optimal design of optical fibers for electric current measurement," Appl. Opt. 28, 1977-1979 (1989)