Microwave frequency measurement method with ultrawide frequency range and high resolution

Shirui Du; Pengfei Du; Xiaotong Liu; Anle Wang; Xiang Li; Depei Zhang; Jin Zhang

doi:10.1117/12.2605464

15 February 2022 Microwave frequency measurement method with ultrawide frequency range and high resolution

Shirui Du, Pengfei Du, Xiaotong Liu, Anle Wang, Xiang Li, Depei Zhang, Jin Zhang

Proceedings Volume 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021); 121660I (2022) https://doi.org/10.1117/12.2605464
Event: Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 2021, Hong Kong, Hong Kong

Abstract

Complex electromagnetic environment in the future battlefield requires spectrum sensing equipment to have broadband and high-resolution measurement capabilities. This paper proposes a microwave photonic frequency measurement method based on optical spectrum operation and stimulated Brillouin scattering. The use of optical spectrum operation is to realize generating pump light in a large range, so as to realize the excitation of stimulated Brillouin scattering in a wide spectrum range, and further the stimulated Brillouin scattering is employed to realize high-resolution frequency sensing. The principle of this method is given and the feasibility of the method is verified experimentally. Experiment results show the measurement capability of the proposed method covers a frequency range of 0.03–40 GHz with a resolution of 25 MHz. The proposed method can effectively support high-resolution frequency sensing in complex electromagnetic environments.

Citation Download Citation

Shirui Du, Pengfei Du, Xiaotong Liu, Anle Wang, Xiang Li, Depei Zhang, and Jin Zhang "Microwave frequency measurement method with ultrawide frequency range and high resolution", Proc. SPIE 12166, Seventh Asia Pacific Conference on Optics Manufacture and 2021 International Forum of Young Scientists on Advanced Optical Manufacturing (APCOM and YSAOM 2021), 121660I (15 February 2022); https://doi.org/10.1117/12.2605464

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KEYWORDS

Microwave radiation

Scattering

Electromagnetism

Light scattering

Microwave photonics

Optical filters

Signal generators

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