Abstract
Temperature dependencies of the half-wave voltage and natural linear birefringence in mechanically free quartz are measured at 1560 nm in the temperature range of 85–310 K. Measurements are carried out using a low-coherence interferometric scheme with a pair of identical quartz crystals independently linked with a scanning Michelson interferometer. Half-wave voltage driven by an electro-optic coefficient grows from 868 kV at 85 K to 923 kV at 310 K. The temperature derivative of natural linear birefringence has nearly linear temperature dependence: . Moderate temperature dependence of the electro-optic effect, along with other properties, makes quartz an appropriate sensing medium for electro-optic voltage sensors for the electric power industry.
© 2015 Optical Society of America
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