多通道2μm声光Q开关

Study on 2μm Acousto-optic Q Switch With Multiple Channel

介绍了一种多通道工作的2μm声光Q开关。在声光介质的两个相邻垂面上分别制作了两组换能器阵列,实现了两维声光Q开关通道组合方式的多样化,声光Q开关在某个工作区域的性能出现下降(如增透膜损伤等)时,可以方便地通过切换工作通道来改变工作区域,从而提高产品使用寿命。制作出的样品在光波长为2μm,驱动电功率为2×80 W,光孔径2mm×2mm时衍射效率高达95%。

A kind of 2μm acousto-optic Q switch working in multiple channel is introduced in this paper.Two sets of transducer arrays are fabricated on two adjacent vertical surfaces of acousto-optic medium and the diversification of the two-dimensional acousto-optic Q-switch channel combination is realized.When the performance of the acousto-optic Q switch declines in a working area（such as e AR coating damage,etc.）,it can easily switch to change the working area through the working channel,thereby enhancing the service life.With the light wavelength of 2μm,driving power of 2×80 W,and aperture of Φ2 mm×2 mm,the diffraction efficiency of the sample is up to 95%.