Demodulation method combining virtual reference interferometry and minimum mean square error for fiber-optic Fabry–Perot sensors

Xinwang Gui; Michael Anthony Galle; Li Qian; Weilong Liang; Ciming Zhou; Yiwen Ou; Dian Fan

doi:doi:10.3788/COL201816.010606

Chinese Optics Letters, 2018, 16 (1): 010606, Published Online: Jul. 17, 2018

Demodulation method combining virtual reference interferometry and minimum mean square error for fiber-optic Fabry–Perot sensors Download： 816次

Xinwang Gui ^1,2Michael Anthony Galle ³Li Qian ^1,3Weilong Liang ^1,2Ciming Zhou ^1,2,*Yiwen Ou ^1,2Dian Fan ^1,2

Author Affiliations

¹ National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China

² Key Laboratory of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan 430070, China

³ Department of Electrical and Computer Engineering, University of Toronto, Toronto M5S-3G4, Canada

Figures & Tables

Fig. 1. Fiber-optic F-P high temperature sensing experimental system based on a sapphire wafer.

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Fig. 2. (Color online) Interference spectra at the temperatures of 28°C, 100°C, and 200°C, respectively.

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Fig. 3. (Color online) Group delay at different temperatures.

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Fig. 4. (Color online) Group delay as a function of temperature at different wavelengths.

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Fig. 5. (Color online) Corresponding cavity lengths decoded by the methods of VRI, MMSE, and VRI-MMSE.

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Fig. 6. Stability measurement result of the VRI-MMSE processing method.

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Xinwang Gui, Michael Anthony Galle, Li Qian, Weilong Liang, Ciming Zhou, Yiwen Ou, Dian Fan. Demodulation method combining virtual reference interferometry and minimum mean square error for fiber-optic Fabry–Perot sensors[J]. Chinese Optics Letters, 2018, 16(1): 010606.

Demodulation method combining virtual reference interferometry and minimum mean square error for fiber-optic Fabry–Perot sensors Download： 816次

Fig. 1. Fiber-optic F-P high temperature sensing experimental system based on a sapphire wafer.

Fig. 2. (Color online) Interference spectra at the temperatures of 28°C, 100°C, and 200°C, respectively.

Fig. 3. (Color online) Group delay at different temperatures.

Fig. 4. (Color online) Group delay as a function of temperature at different wavelengths.

Fig. 5. (Color online) Corresponding cavity lengths decoded by the methods of VRI, MMSE, and VRI-MMSE.

Fig. 6. Stability measurement result of the VRI-MMSE processing method.

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Demodulation method combining virtual reference interferometry and minimum mean square error for fiber-optic Fabry–Perot sensors Download： 816次

Fig. 1. Fiber-optic F-P high temperature sensing experimental system based on a sapphire wafer.

Fig. 2. (Color online) Interference spectra at the temperatures of 28°C, 100°C, and 200°C, respectively.

Fig. 3. (Color online) Group delay at different temperatures.

Fig. 4. (Color online) Group delay as a function of temperature at different wavelengths.

Fig. 5. (Color online) Corresponding cavity lengths decoded by the methods of VRI, MMSE, and VRI-MMSE.

Fig. 6. Stability measurement result of the VRI-MMSE processing method.

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