Magnetooptical current transformer. 1: Principles

Appl Opt. 1980 Nov 15;19(22):3729-34. doi: 10.1364/AO.19.003729.


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.