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
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)