一种6信道声光调制器

Acousto-Optic Modulator with Six Channels

介绍了一种6信道声光调制器。通过在换能器上制备电极阵列,设计独立的阻抗匹配电路和电输入端口,将6个声光互作用单元集成在一起,实现了对6束激光的并行、独立调制。经测试,该6信道声光调制器工作波长为355 nm,工作频率为220 MHz,单信道衍射效率>75%,全局串扰<0.5%。

This article introduces an acousto-optic modulator,with six channels,that achieves parallel and independent modulation of six laser beams by preparing electrode arrays on the transducer,designing independent impedance matching circuits and electrical input interfaces,and integrating six acousto-optic interaction units.The acousto-optic modulator has an optical wavelength of 355 nm,a working frequency of 220 MHz,a diffraction efficiency of over 75%for each channel,and a global cross-talk below 0.5%.