METHOD FOR CONTROLLING POLARIZED LASER RADIATION Russian patent published in 1995 - IPC

FIELD: magnetooptics. SUBSTANCE: polarized radiation is passed through ferrite-garnet element 1 and analyzer 2. Magnetic flux 3 that may be produced, for example, by inductance coil with current source or by annular permanent magnet magnetizes ferrite-garnet element 1 along direction of laser radiation propagation. Radiation source 4 heats ferrite-garnet element 1 with the result that it crosses magnetic moment compensation point and Faraday rotation reverses polarity. EFFECT: reduced power requirement, improved speed of response. 2 dwg