High-accuracy magnetic field and electric current measurement based on optoelectronic oscillator

Muguang Wang; Beilei Wu

doi:10.1117/12.2601426

9 October 2021 High-accuracy magnetic field and electric current measurement based on optoelectronic oscillator

Muguang Wang, Beilei Wu

Author Affiliations +

Proceedings Volume 11902, Real-time Photonic Measurements, Data Management, and Processing VI; 119020V (2021) https://doi.org/10.1117/12.2601426
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

High-accuracy and high-speed optoelectronic oscillator (OEO)-based magnetic field and electric current fiber measurement is presented in this paper. Thanks to the Giant-Magnetoresistance Effect and Faraday Effect, the magnetic field and electric current can be transformed to the changes in characteristics of light propagating in optical fiber. Then, the use of OEO can translate the magnetic field and electric current dependent changes in optical domain to the oscillating frequency changes in microwave domain in order to increase the interrogation speed and resolution. The theoretical analysis and principle are investigated systematically. Experimental results are then provided to validate the OEO-enabled magnetic field and electric current measurement techniques.

Conference Presentation

Citation Download Citation

Muguang Wang and Beilei Wu "High-accuracy magnetic field and electric current measurement based on optoelectronic oscillator", Proc. SPIE 11902, Real-time Photonic Measurements, Data Management, and Processing VI, 119020V (9 October 2021); https://doi.org/10.1117/12.2601426

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