We demonstrate a novel laser frequency shift scheme using a 12-pass 350-MHz acousto-optic modulator (AOM). This AOM system shows better performance compared to ordinary acousto-optic modulation schemes. The frequency of the incident laser beam is shifted by 4.2 GHz with the total diffraction efficiency as high as 11%, and the maximum frequency shift is 5 GHz. Combining the ±1st order diffraction, laser signals with up to 10 GHz frequency difference can be obtained, which fulfill most frequency shift requirements of laser cooling and coherent manipulation experiments with alkali metal atoms.

中文翻译：

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使用高效 12-pass 350-MHz 声光调制器实现高达 5 GHz 的激光频移

我们展示了一种使用 12 通道 350 MHz 声光调制器 (AOM) 的新型激光频移方案。与普通的声光调制方案相比，这种 AOM 系统表现出更好的性能。入射激光束频移4.2 GHz，总衍射效率高达11%，最大频移5 GHz。结合±1级衍射，可以获得频率差高达10 GHz的激光信号，满足激光冷却和碱金属原子相干操纵实验的大多数频移要求。