TeO_(2)声光晶体及其声光器件的研究进展

Research Progress of Acousto-Optic Crystals of TeO_(2) and Acousto-Optic Devices

随着激光技术的快速发展,声光器件在激光领域的应用逐步延伸,特别是在信号处理、时频转换等领域具有重要且不可替代的应用场景。TeO_(2)声光晶体因其优异的声光特性,常被作为声光器件的核心元件。本文首先概述了声光衍射的基本概念及声光作用原理,包括拉曼-奈斯(Raman-Nath)衍射和布拉格(Bragg)衍射,其次介绍TeO_(2)晶体结构、晶体生长工艺、缺陷分析及性能测试,然后介绍声光器件结构组成、核心元件制备工艺及目前典型的商业化声光器件产品,最后展望了TeO_(2)声光晶体及其声光器件的应用前景。

With the fast development of laser technology,the applications of TeO_(2) crystals and their devices are continuously expanded,such as signal processing,time-frequency conversion,spectrum analysis and other fields.TeO_(2) crystal has excellent acousto-optic properties and it is widely used in the production of various acousto-optic devices.In this paper,the basic concepts and principles of acousto-optic diffraction are firstly summarized,including Raman-Nath diffraction and Bragg diffraction.Secondly,the crystal structure,crystal preparation process,defect analysis and performance testing of TeO_(2) crystal are summarized.Then the structure of acousto-optic device,the preparation process of core component,and the typical commercial acousto-optic device products are introduced.In the end,the application prospect and prospect of TeO_(2) crystal and acousto-optic device are prospected.