Variable frequency lock-in detection for Brillouin optical correlation domain analysis

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초록

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. © 2011 National Sun Yat-Sen Univ.

키워드

Beat noise; Brillouin gain spectrum; Brillouin optical correlation domain analysis; Chopping frequency; Lock-in detection; Variable frequencies; Frequency shift keying; Optical correlation; Frequency domain analysis
제목
Variable frequency lock-in detection for Brillouin optical correlation domain analysis
저자
Jeong, Jiho; Lee, Kwanil; Song, Kwang Yong; Jeong, Je-Myung; Lee, Sang Bae
발행일
2011
유형
Conference Paper
저널명
16th Opto-Electronics and Communications Conference, OECC 2011
페이지
327 ~ 328