Effect of temperature on characteristics of rare earth-doped magneto-optical glass in optical current transducer application

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• 作者：Yan Shen^a ; ^{yanshen@hit.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yunhe Lu^b ; Xueliang Yu^a ; Zhao Liu^a
• 关键词：Optical current transducer ; Rare earth-doped magneto-optical glass ; Temperature characteristics ; Linear birefringence
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：126
• 期：23
• 页码：3589-3593
• 全文大小：584 K

文摘

First, a theoretical analysis was performed on the effect of temperature and on the performance of the sensing element of rare earth-doped magneto-optical glass material that can be used in an optical current transducer application. The effect comprises two aspects: the linear birefringence and the Verdet constant. On this basis, rare earth-doped glass temperature characteristics were studied, and the experimental results indicated that the linear birefringence of rare earth-doped glass increased with increasing temperature, while its magneto-optical sensitivity decreased. Comparative experiments performed for various concentrations of rare-earth dopant in the glass revealed that changes in the dopant concentration had no significant effect on the performance of magneto-optical glass.