Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device

Shuang Wang; Jie Zhou; Junfeng Jiang; Kun Liu; Qun Han; Yanan Duan; Rundong Wang; Tiegen Liu

doi:doi:10.3788/COL202018.071202

Chinese Optics Letters, 2020, 18 (7): 071202, Published Online: Jun. 12, 2020

Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device Download： 774次

Shuang Wang ^1,2,3,*Jie Zhou ^1,2,3Junfeng Jiang ^1,2,3,**Kun Liu ^1,2,3Qun Han ^1,2,3Yanan Duan ^1,2,3Rundong Wang ^1,2,3Tiegen Liu ^1,2,3

Author Affiliations

¹ School of Precision Instrument and Opto-electronics Engineering, Tianjin University, Tianjin 300072, China

² Key Laboratory of Opto-electronics Information Technology, Ministry of Education, Tianjin 300072, China

³ Tianjin Optical Fiber Sensing Engineering Center, Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China

Figures & Tables

Fig. 1. Schematic diagram of the polarized multi-channel synchronous demodulation system.

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Fig. 2. Schematic diagram of the horizontal section optical path analysis.

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Fig. 3. Interferograms of four channels detected by the matrix CCD when the air pressure is 101 kPa.

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Fig. 4. Signals of channels 1–4 when the air pressure is 101 kPa.

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Fig. 5. Relationship between the absolute phase and the corresponding air pressure of the four channels.

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Fig. 6. Pressure errors and standard deviations of channels 1–4 within the air pressure measuring range.

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Shuang Wang, Jie Zhou, Junfeng Jiang, Kun Liu, Qun Han, Yanan Duan, Rundong Wang, Tiegen Liu. Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device[J]. Chinese Optics Letters, 2020, 18(7): 071202.

Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device Download： 774次

Fig. 1. Schematic diagram of the polarized multi-channel synchronous demodulation system.

Fig. 2. Schematic diagram of the horizontal section optical path analysis.

Fig. 3. Interferograms of four channels detected by the matrix CCD when the air pressure is 101 kPa.

Fig. 4. Signals of channels 1–4 when the air pressure is 101 kPa.

Fig. 5. Relationship between the absolute phase and the corresponding air pressure of the four channels.

Fig. 6. Pressure errors and standard deviations of channels 1–4 within the air pressure measuring range.

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Multi-channel polarized low-coherence interference synchronous demodulation system based on a matrix charge-coupled device Download： 774次

Fig. 1. Schematic diagram of the polarized multi-channel synchronous demodulation system.

Fig. 2. Schematic diagram of the horizontal section optical path analysis.

Fig. 3. Interferograms of four channels detected by the matrix CCD when the air pressure is 101 kPa.

Fig. 4. Signals of channels 1–4 when the air pressure is 101 kPa.

Fig. 5. Relationship between the absolute phase and the corresponding air pressure of the four channels.

Fig. 6. Pressure errors and standard deviations of channels 1–4 within the air pressure measuring range.

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