摘要
报道了一种实用高效的两维声光Ｑ开关。描述了两维声光Ｑ开关的基本原理，详细推导出正常布喇格衍射的两维声光Ｑ开关衍射效率和衍射损耗的表达式，分析了两维布喇格衍射和一维布喇格衍射之间的关系，并给出了在驱动功率４０Ｗ、光束直径５ｍｍ、光波长１．０６μｍ时衍射损耗达５０％的实验结果。
This paper reports a two dimensional acousto optic Q switch with high efficiency and practicability.The principle of the two dimensional acoustooptic Q switch is presented,the formulas of the diffraction efficiency and diffraction loss of the AO Q switch with normal Bragg diffraction is derived,the relationship between One dimensional and Two dimensional Bragg diffraction is analyzed.The experimental result of a single diffraction loss of 50% for a 5 mm beam with a RF driving power of 40 W watts at the 1.06 μm wavelength is obstained.
出处
《压电与声光》
CSCD
北大核心
1998年第1期7-13,共7页
Piezoelectrics & Acoustooptics
