少数物质对熔融石英玻璃热极化的影响

N. Wada, Morinaga Kenji, H. Takebe, V. Pruneri, P. Kazansky
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引用次数: 1

摘要

极化硅玻璃中的高二阶非线性(SON)[1]对于开发单片集成到光纤或平面玻璃波导中的线性电光调制器和频率转换器具有重要意义。然而,它的起源[1,2]并不完全清楚。研究了极化时间和电压对热极化硅玻璃二次谐波产生的外在影响[1,3]。特别是最大SH信号对外加电压的二次依赖关系表明SON对内部电场的线性依赖关系[3]。对硅玻璃热极化过程中缺陷[1,4]和OH[1,5]、Na[1,6]等少数物质的内在效应进行了研究。在这项工作中,我们对商业熔融石英玻璃中的氧相关缺陷和杂质(OH和Na)进行了系统的分析(不依赖于它们的目录数据),并讨论了它们对SON的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Minority Species on Thermal Poling of Fused Silica Glasses
High second-order nonlinearity (SON) in poled silica glasses [1] is of great interest for the development of linear electro-optic modulators and frequency converters monolithically integrated into optical fibres or planar glass waveguides. However, its origin [1, 2] is not fully understood. The extrinsic effects of poling time and voltage on second-harmonic (SH) generation in thermally-poled silica glass have been studied [1,3]. In particular the quadratic dependence of the maximum SH signal on the applied voltage indicated linear dependence of the SON on internal electric field [3]. There are several studies on intrinsic effects associated with defects [1, 4] and minority species such as OH [1,5] and Na [1, 6] in thermal poling of silica glasses. In this work we carried out a systematic analysis of oxygen related defects and impurities (OH and Na) in commercial fused silica glasses (without relying on their catalogue data) and discuss their effects on SON.
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