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Chinese Optics Letters, Volume. 18, Issue 10, 101203(2020)

Modified frequency-shifted interferometer: encoding wavelength into phase

Xi Chen1,2,3, Ciming Zhou1, Dian Fan1、*, Li Qian1,4, Yandong Pang1,2, Cong Wei1,2, Chenguang Zhao1, Sijing Liang1, and Yuxiao Li1,2
Author Affiliations
  • 1National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China
  • 2School of Information Engineering, Wuhan University of Technology, Wuhan 430065, China
  • 3Department of Mechanical and Electrical Engineering, College of Post and Telecommunication, Wuhan Institute of Technology, Wuhan 430073, China
  • 4Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 3G4, Canada
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    Schematic diagram of the MFSI based on a compound interferometer. AOM, acoustic optic modulator; CIR-1, CIR-2, circulators; PC, polarization controller; C1, C2, fiber couplers; MZI, formed by CIR-2 and C2.

    Fig. 1. Schematic diagram of the MFSI based on a compound interferometer. AOM, acoustic optic modulator; CIR-1, CIR-2, circulators; PC, polarization controller; C1, C2, fiber couplers; MZI, formed by CIR-2 and C2.

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    (a) Interference signal from MFSI obtained at 1548 nm and 1554 nm and (b) 1548 nm and 1554 nm phase intercept.

    Fig. 2. (a) Interference signal from MFSI obtained at 1548 nm and 1554 nm and (b) 1548 nm and 1554 nm phase intercept.

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    Wavelength 1548–1553 nm interference signal and their phase changes intercept. (a) Wavelength 1548–1553 nm interference signal and (b) 1548–1553 nm phase changes intercept.

    Fig. 3. Wavelength 1548–1553 nm interference signal and their phase changes intercept. (a) Wavelength 1548–1553 nm interference signal and (b) 1548–1553 nm phase changes intercept.

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    • Table 1. Results of the Experiment

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      Table 1. Results of the Experiment

      TSL (nm)Phase (rad)PD (rad)MWL (nm)
      1548.0001.38420.00001548.000
      1549.0000.3336−1.05061549.003
      1550.000−0.7156−2.09981550.005
      1551.000−1.7672−3.15141551.009
      1552.000−2.8080−4.19221552.004
      1553.0002.4330−5.23431552.999
      1554.0001.3792−0.00501548.005
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    Xi Chen, Ciming Zhou, Dian Fan, Li Qian, Yandong Pang, Cong Wei, Chenguang Zhao, Sijing Liang, Yuxiao Li, "Modified frequency-shifted interferometer: encoding wavelength into phase," Chin. Opt. Lett. 18, 101203 (2020)

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    Paper Information

    Category: Optical Sensing, Measurements, and Metrology

    Received: May. 13, 2020

    Accepted: Jun. 23, 2020

    Published Online: Aug. 26, 2020

    The Author Email: Dian Fan (fandian@whut.edu.cn)

    DOI:10.3788/COL202018.101203

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology