The principles of measuring currents in high-voltage lines by magnetooptical means are described. Particular attention is payed to using an optical fiber both as a transmission line and a measuring sensor. The influence of birefringence on the measuring signal is discussed.
© 1980 Optical Society of America
A. Papp and H. Harms, "Magnetooptical current transformer. 1: Principles," Appl. Opt. 19, 3729-3734 (1980)