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Experiment on the phase congruency of distributed feedback optical fiber laser hydrophones
Liu, Yuliang; Zhang, Wentao; He, Jun; Li, Fang; Liu, Y.(ylliu@semi.ac.cn)
2011
Source PublicationHongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
ISSN10072276
Volume40Issue:2Pages:310-314
AbstractA method of detecting the phase congruency of distributed feedback(DFB) optical fiber laser hydrophones was proposed based on detection system of traditional piezoelectric hydrophones, and the phase congruency detection system was set up. A polarization-insensitive unbalanced Michelson fiber interferometer was employed to transfer the frequency shifts to the phase shifts of the interferometer. After converting the output optical signal of the interferometer to electric signal, a normalized phase generated carrier(PGC) demodulation technique was used to demodulate the acoustic signal. Then the demodulated signal and the signal of the reference piezoelectric hydrophone were input into a high-resolution digital phase detector to get the phase difference. Repeat the above steps with another optical fiber laser hydrophone and compare the two results, the phase congruency between the two optical fiber laser hydrophones would be calculated. Corresponding experiments show the reliability of the phase congruency detection system and the high phase congruency between optical fiber laser hydrophones.
metadata_83光电系统实验室
KeywordDemodulation Detectors Experiments Fiber Lasers Fibers Hydrophones Interferometers Optical Fibers Piezoelectricity Signal Detection
Subject Area光电子学
Indexed ByEI
Language中文
Date Available2012-06-14
Document Type期刊论文
Identifierhttp://ir.semi.ac.cn/handle/172111/23091
Collection光电系统实验室
Corresponding AuthorLiu, Y.(ylliu@semi.ac.cn)
Recommended Citation
GB/T 7714
Liu, Yuliang,Zhang, Wentao,He, Jun,et al. Experiment on the phase congruency of distributed feedback optical fiber laser hydrophones[J]. Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,2011,40(2):310-314.
APA Liu, Yuliang,Zhang, Wentao,He, Jun,Li, Fang,&Liu, Y..(2011).Experiment on the phase congruency of distributed feedback optical fiber laser hydrophones.Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering,40(2),310-314.
MLA Liu, Yuliang,et al."Experiment on the phase congruency of distributed feedback optical fiber laser hydrophones".Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering 40.2(2011):310-314.
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