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Analysis of the beat noise induced by the lock-in detection in Brillouin optical correlation domain analysis
- Jeong, Jiho;
- Lee, Kwanil;
- Song, Kwang Yong;
- Jeong, Je-Myung;
- Lee, Sang Bae
Citations
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0초록
We present theoretical and experimental analysis of the beat noise occurring in distributed fiber sensors based on Brillouin optical correlation domain analysis (BOCDA). The origin of the beat noise turns out to lie in the variation of the Brillouin gain induced by the chopping of the intensity-modulated pump wave in the lock-in detection applied for the signal processing of a BOCDA system. Additionally, a variable-frequency lock-in detection technique is suggested as an effective way of the noise suppression. © 2011 OSA.
키워드
Beat noise; Brillouin gain; Brillouin optical correlation domain analysis; Distributed fiber sensor; Experimental analysis; Lock-in detection; Noise suppression; Pump waves; Communication; Fiber optic sensors; Optical communication; Signal processing; Optical correlation
- 제목
- Analysis of the beat noise induced by the lock-in detection in 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
- European Conference on Optical Communication, ECOC
- 언어
- ENG
- ISSN
- P 2162-2701