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Broadband tunable instantaneous frequency measurement system based on stimulated Brillouin scattering

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Abstract

A broadband tunable instantaneous frequency measurement (IFM) system is designed based on the stimulated Brillouin scattering effect of the highly nonlinear fiber in which the carrier suppressed single sideband modulated signal of the Brillouin frequency shift acts as pump light. The amplitude comparison function (ACF) is constructed by the power radio of the two paths in the system. The frequency measurement range and measurement accuracy can be tuned by changing the frequency difference of the two phase modulation signals. The tunable frequency measurement ranges of 2–5 GHz, 2–10 GHz, 2–15 GHz, 2–20 GHz, and 2–24 GHz are realized, and the corresponding measurement accuracies are 3.64 dB/GHz, 2.17 dB/GHz, 1.87 dB/GHz, 1.22 dB/GHz, and 0.77 dB/GHz, respectively.

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Authors and Affiliations

  1. Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, 650500, China

    Weijie Liao, Jiahong Zhang & Qibin Cai

Authors
  1. Weijie Liao
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  2. Jiahong Zhang
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  3. Qibin Cai
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Corresponding author

Correspondence to Jiahong Zhang.

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The authors declare that there are no conflicts of interest related to this article.

This work has been supported by the National Science Foundation of China (No.62162034), and the General Program of Basic Research Program of Yunnan Province (No.202201AT070189).

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Liao, W., Zhang, J. & Cai, Q. Broadband tunable instantaneous frequency measurement system based on stimulated Brillouin scattering. Optoelectron. Lett. 19, 174–178 (2023). https://doi.org/10.1007/s11801-023-2174-2

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  • DOI: https://doi.org/10.1007/s11801-023-2174-2

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