High sensitivity demodulation of a reflective interferometer-based optical current sensor using an optoelectronic oscillator

Muguang Wang; Naihan Zhang; Xiaodi Huang; Bin Yin; Hongqian Mu; Mengyao Han; Desheng Chen

doi:10.1364/OL.401279

High sensitivity demodulation of a reflective interferometer-based optical current sensor using an optoelectronic oscillator

Muguang Wang, Naihan Zhang, Xiaodi Huang, Bin Yin, Hongqian Mu, Mengyao Han, Desheng Chen

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A novel, to the best of our knowledge, interrogation scheme based on an optoelectronic oscillator (OEO) with high sensitivity and high speed response for a fiber optical current sensor utilizing a reflective interferometer is proposed and experimentally demonstrated. Due to the Faraday effect, a magneto-optic phase shift induced by current variation is generated between two orthogonal light waves. The polarization-dependent properties of the Mach–Zehnder modulator are used to convert the magneto-optic phase shift into the phase difference between the optical carrier and sideband, which is then mapped to the oscillating frequency shift by closing an OEO loop. A high current sensitivity of 152.5 kHz/A with a range of 0–2.5 A is obtained in the experiment.

Original language	English
Pages (from-to)	4519-4522
Number of pages	4
Journal	Optics Letters
Volume	45
Issue number	16
DOIs	https://doi.org/10.1364/OL.401279
Publication status	Published - 15 Aug 2020
Externally published	Yes

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Wang, M., Zhang, N., Huang, X., Yin, B., Mu, H., Han, M., & Chen, D. (2020). High sensitivity demodulation of a reflective interferometer-based optical current sensor using an optoelectronic oscillator. Optics Letters, 45(16), 4519-4522. https://doi.org/10.1364/OL.401279

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abstract = "A novel, to the best of our knowledge, interrogation scheme based on an optoelectronic oscillator (OEO) with high sensitivity and high speed response for a fiber optical current sensor utilizing a reflective interferometer is proposed and experimentally demonstrated. Due to the Faraday effect, a magneto-optic phase shift induced by current variation is generated between two orthogonal light waves. The polarization-dependent properties of the Mach–Zehnder modulator are used to convert the magneto-optic phase shift into the phase difference between the optical carrier and sideband, which is then mapped to the oscillating frequency shift by closing an OEO loop. A high current sensitivity of 152.5 kHz/A with a range of 0–2.5 A is obtained in the experiment.",

author = "Muguang Wang and Naihan Zhang and Xiaodi Huang and Bin Yin and Hongqian Mu and Mengyao Han and Desheng Chen",

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AU - Yin, Bin

AU - Mu, Hongqian

AU - Han, Mengyao

AU - Chen, Desheng

PY - 2020/8/15

Y1 - 2020/8/15

N2 - A novel, to the best of our knowledge, interrogation scheme based on an optoelectronic oscillator (OEO) with high sensitivity and high speed response for a fiber optical current sensor utilizing a reflective interferometer is proposed and experimentally demonstrated. Due to the Faraday effect, a magneto-optic phase shift induced by current variation is generated between two orthogonal light waves. The polarization-dependent properties of the Mach–Zehnder modulator are used to convert the magneto-optic phase shift into the phase difference between the optical carrier and sideband, which is then mapped to the oscillating frequency shift by closing an OEO loop. A high current sensitivity of 152.5 kHz/A with a range of 0–2.5 A is obtained in the experiment.

AB - A novel, to the best of our knowledge, interrogation scheme based on an optoelectronic oscillator (OEO) with high sensitivity and high speed response for a fiber optical current sensor utilizing a reflective interferometer is proposed and experimentally demonstrated. Due to the Faraday effect, a magneto-optic phase shift induced by current variation is generated between two orthogonal light waves. The polarization-dependent properties of the Mach–Zehnder modulator are used to convert the magneto-optic phase shift into the phase difference between the optical carrier and sideband, which is then mapped to the oscillating frequency shift by closing an OEO loop. A high current sensitivity of 152.5 kHz/A with a range of 0–2.5 A is obtained in the experiment.

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High sensitivity demodulation of a reflective interferometer-based optical current sensor using an optoelectronic oscillator

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