Polarization Optimization for Instantaneous Frequency Measurements Based on Stimulated Brillouin Scattering

Guangyao Xin; Weiwen Zou; Xin Long; Jianping Chen

doi:10.3788/AOS201939.0507001

Acta Optica Sinica, Volume. 39, Issue 5, 0507001(2019)

Polarization Optimization for Instantaneous Frequency Measurements Based on Stimulated Brillouin Scattering

Guangyao Xin, Weiwen Zou^*, Xin Long, and Jianping Chen

State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China

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Fig. 1. Illustration of Brillouin gain under different conditions. (a) Ideal; (b) polarization-influenced

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Fig. 2. Schematic of experimental setup

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Fig. 3. Time-frequency characteristics of pump and probe signals used for ACF curve calibration in SMF-IFM experiment. (a) Pump signal; (b) probe signal; (c) measured ACF curve

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Fig. 4. Typical measurement results under different averaging times. (a) 4 times; (b) 1024 times

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Fig. 5. Point-by-point variance curve from 30 measurements

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Fig. 6. Frequency resolutions under different averaging times

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Table 1. Parameters of fibers for SBS-based real-time IFM system
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Table 1. Parameters of fibers for SBS-based real-time IFM system
Parameter SMF PMF
Model SMF-28e TAO3417BE06
Length /m 200 200
Brillouin frequency shift /GHz 10.801 10.861
Brillouin gain bandwidth /MHz 44 46

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Guangyao Xin, Weiwen Zou, Xin Long, Jianping Chen. Polarization Optimization for Instantaneous Frequency Measurements Based on Stimulated Brillouin Scattering[J]. Acta Optica Sinica, 2019, 39(5): 0507001

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