Experiment Research on Temperature Response of Faraday Effect in Paramagnetic Terbium Glass
顺磁性铽玻璃法拉第效应温度特性实验研究

A magneto-optical-modulating-double-frequency system is set up and actualized with temperature controlled added.The eigen rotation and Verdet constant of the paramagnetic terbium glass Tb20 are measured in 293K~343K.With the temperature goes higher,the eigen rotation increases to a stable value gradually and the Verdet constant decreases keeping to the theoretical formula.The experimental results show that the terbium glass has sensitive temperature response.When it is used,especially used as Zero-Lock gyro Faraday bias element,temperature compensation must be taken,and several potential approaches to temperature compensation are also given.