Role of ion migrations in ultrafast laser written tellurite glass waveguides.
Role of ion migrations in ultrafast laser written tellurite glass waveguides.
复制标题
DOI：
10.1364/oe.22.015298
复制
发表时间：
2014-06
期刊：
影响因子：
3.8
通讯作者：
T. Fernandez;Maikel Arista-Salado y Hernández;B. Sotillo;S. Eaton;G. Jose;R. Osellame;A. Jha;P. Fernández;J. Solís
中科院分区：
文献类型：
--
作者：
T. Fernandez;Maikel Arista-Salado y Hernández;B. Sotillo;S. Eaton;G. Jose;R. Osellame;A. Jha;P. Fernández;J. Solís
我们报告了一个强大的交叉迁移的碲酸盐（Te）为基础的玻璃离子形成波导使用高重复率飞秒激光。碲酸盐玻璃基质改性P，Na和Zn元素的氧化物，其中Te和Na离子起着重要作用，在激光照射下形成波导。观察到碲迁移引起正折射率变化区，而钠交叉迁移到碲缺乏区，形成相对低的折射率变化区。我们已经使用显微拉曼分析来扫描整个波导横截面，以了解玻璃网络的状态和离子迁移与波导的玻璃致密化之间的关系。我们已经发现，有一个增加TeO3单位和减少TeO4单位在富Te区，使致密化。这项工作将有助于指导新的商业玻璃制造业，旨在生产中红外透明玻璃，如碲酸盐，碲化物和硫属化物，用于生产波导基器件。
We report on a strong cross migration of ions in a Tellurite (Te) based glass to form waveguides using a high repetition rate femtosecond laser. The tellurite glass matrix was modified using oxides of P, Na and Zn elements of which Te and Na ions play an important role to form waveguides upon laser irradiation. Tellurium was observed to migrate causing a positive index change zone whereas sodium cross migrates to the tellurium deficient zone forming a relatively low index change region. We have used micro-Raman analysis to scan across the waveguide cross-section to understand the state of the glass network and the relation between ion migration and glass densification for waveguiding. We have found that there is an increase in TeO3 units and reduction of TeO4 units in the Te rich zones enabling densification. This work will help guide the new commercial glass manufacturing industries that aim at producing mid-infrared transparent glasses like tellurite, tellurides and chalcogenides for the production of waveguide based devices.