Magneto-optic current transformer, and method for measuring a current intensity

A magneto-optic current transformer for detecting a current intensity of an electric current in a current conductor, comprising:

• two light guide units, each having a linear input polarizer, a linear output polarizer and a light guide arranged between the linear input polarizer and the linear output polarizer in a region of the current conductor, said light guide exhibiting a Faraday effect and being configured to feed light transmitted by the linear input polarizer to the linear output polarizer,
• a light supply device configured to feed light to the light guide units on an input side, and
• an analysis device configured to detect for each light guide unit a light intensity of light output by the light guide unit on an output side, and to determine the current intensity of the electric current through the current conductor from detected light intensities,
• wherein a polarization axis of the linear output polarizer of each light guide unit is rotated by a polarization angle relative to a polarization axis of the linear input polarizer of the light guide unit, and the polarization angles of the two light guide units differ from one another.