A kind of 2 μm acoustooptic Q switch working in multiple channel is introduced in this paper.Two sets of transducer arrays are fabricated on two adjacent vertical surfaces of acoustooptic medium and the diversification of the twodimensional acoustooptic Qswitch channel combination is realized.When the performance of the acoustooptic 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 2 μm,driving power of 2×80 W,and aperture of 2 mm×2 mm,the diffraction efficiency of the sample is up to 95%.
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张泽红, 杨涛, 何晓亮, 高维松.多通道2 μm声光Q开关[J].压电与声光,2017,39(4):483-486. ZHANG Zehong, YANG Tao, HE Xiaoliang, GAO Weisong. Study on 2 μm Acoustooptic Q Switch With Multiple Channel[J]. PIEZOELECTRICS AND ACOUSTOOPTICS