Variable frequency lock-in detection for Brillouin optical correlation domain analysis
opto-electronics and communications conference(2011)
摘要
We propose and experimentally demonstrate a variable frequency lock-in detection technique for Brillouin optical correlation domain analysis (BOCDA). The beat noise appearing in the acquisition of Brillouin gain spectrum by ordinary lock-in detection is investigated, and a method of varying the chopping frequency is newly applied to minimize the beat noise.
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关键词
decision support systems,domain analysis,decision support system
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