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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。
Reported a practical and efficient two-dimensional acousto-optic Q switch. The basic principle of two-dimensional acousto-optic Q-switch is described. The expressions of diffraction efficiency and diffraction loss of two-dimensional acousto-optic Q-switch in normal Bragg diffraction are deduced in detail. Two-dimensional Bragg diffraction and one- And the experimental results of the diffraction loss up to 50% at the driving power of 40 W, the beam diameter of 5 mm and the optical wavelength of 1.06 μm are given.