Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology
In this paper, we propose and demonstrate the optical fiber Fabry-Perot (F-P) interferometer based on birefringent crystals and polarization technology. For recovering the variation signals, the orthogonal signals are obtained based on the birefringent crystal characteristics and the proposal thickn...
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doaj-d174a1e4b0224a779d826628828f85502021-03-29T18:00:31ZengIEEEIEEE Photonics Journal1943-06552020-01-011231910.1109/JPHOT.2020.29779529026805Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization TechnologyYi Huang0https://orcid.org/0000-0002-6693-7037Shuang Wang1https://orcid.org/0000-0002-9809-4062Junfeng Jiang2https://orcid.org/0000-0003-0393-8451Kun Liu3https://orcid.org/0000-0003-2460-6851Xuezhi Zhang4https://orcid.org/0000-0001-9241-251XPeng Zhang5Tiegen Liu6https://orcid.org/0000-0003-4141-6961School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaSchool of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin, ChinaIn this paper, we propose and demonstrate the optical fiber Fabry-Perot (F-P) interferometer based on birefringent crystals and polarization technology. For recovering the variation signals, the orthogonal signals are obtained based on the birefringent crystal characteristics and the proposal thickness difference between the two crystals. The differential cross multiplication (DCM) algorithm is utilized to demodulate the orthogonal signals to obtain the phase variation of the optical fiber F-P sensor. The proposed interferometer has a minimum detection phase of 0.014 rad/ √Hz at the frequency of 25 kHz. In the experiment, two kinds of vibration signals with frequencies of 25 kHz and 15 kHz are used and the proposed interferometer SNR is 70 dB and 75 dB under the corresponding reference environment respectively. The experiment results show that the proposed interferometer can realize the measurement of large dynamic signals and has high stability. The proposed interferometer has the advantages of fast demodulation and good environmental adaptability.https://ieeexplore.ieee.org/document/9026805/Optical fiber Fabry-Perot interferometerbirefringent crystalsorthogonal signalsphase variation. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Yi Huang Shuang Wang Junfeng Jiang Kun Liu Xuezhi Zhang Peng Zhang Tiegen Liu |
spellingShingle |
Yi Huang Shuang Wang Junfeng Jiang Kun Liu Xuezhi Zhang Peng Zhang Tiegen Liu Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology IEEE Photonics Journal Optical fiber Fabry-Perot interferometer birefringent crystals orthogonal signals phase variation. |
author_facet |
Yi Huang Shuang Wang Junfeng Jiang Kun Liu Xuezhi Zhang Peng Zhang Tiegen Liu |
author_sort |
Yi Huang |
title |
Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology |
title_short |
Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology |
title_full |
Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology |
title_fullStr |
Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology |
title_full_unstemmed |
Orthogonal Phase Demodulation of Optical Fiber Fabry-Perot Interferometer Based on Birefringent Crystals and Polarization Technology |
title_sort |
orthogonal phase demodulation of optical fiber fabry-perot interferometer based on birefringent crystals and polarization technology |
publisher |
IEEE |
series |
IEEE Photonics Journal |
issn |
1943-0655 |
publishDate |
2020-01-01 |
description |
In this paper, we propose and demonstrate the optical fiber Fabry-Perot (F-P) interferometer based on birefringent crystals and polarization technology. For recovering the variation signals, the orthogonal signals are obtained based on the birefringent crystal characteristics and the proposal thickness difference between the two crystals. The differential cross multiplication (DCM) algorithm is utilized to demodulate the orthogonal signals to obtain the phase variation of the optical fiber F-P sensor. The proposed interferometer has a minimum detection phase of 0.014 rad/ √Hz at the frequency of 25 kHz. In the experiment, two kinds of vibration signals with frequencies of 25 kHz and 15 kHz are used and the proposed interferometer SNR is 70 dB and 75 dB under the corresponding reference environment respectively. The experiment results show that the proposed interferometer can realize the measurement of large dynamic signals and has high stability. The proposed interferometer has the advantages of fast demodulation and good environmental adaptability. |
topic |
Optical fiber Fabry-Perot interferometer birefringent crystals orthogonal signals phase variation. |
url |
https://ieeexplore.ieee.org/document/9026805/ |
work_keys_str_mv |
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