Diamagnetic TeO2-ZnO-Na2O glasses and fibers were fabricated and characterized for magneto-optical current-sensor applications. Two prototypes based on the obtained glass and fibers were constructed. An analysis of the distribution of the magnetic field flux inside the conductor was performed. Hardware and developed software were constructed for the acquisition of weak output signals induced by a low current. The good sensitivities of the fiber magneto-optical current transducer and the bulk magneto-optical current transducer are due to the high Verdet constant and homemade signal-acquisition hardware. (c) 2015 Optical Society of America
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