For the importance of the ao frequency translator loop , the mechanism of ao frequency shift and the loop are analysed detailedly , and done the experiment of this part . for the frequency shifter used has no fiber input and output 基于聲光移頻環(huán)路的重要性,本文還重點(diǎn)對(duì)聲光移頻的機(jī)理及聲光移頻環(huán)做了詳細(xì)分析,并且完成了該部分的實(shí)驗(yàn)。