High sensitivity optical fiber current sensor based on polarization diversity and a Faraday rotation mirror cavity

Hongying Zhang; Yongkang Dong; Jesse Leeson; Liang Chen; Xiaoyi Bao

doi:10.1364/AO.50.000924

High sensitivity optical fiber current sensor based on polarization diversity and a Faraday rotation mirror cavity

Hongying Zhang
, Yongkang Dong
, Jesse Leeson
, Liang Chen
, Xiaoyi Bao^*

^*Corresponding author for this work

University of Ottawa

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

57 Scopus citations

Abstract

A novel high sensitivity optical fiber current sensor (OFCS) based on polarization diversity and a Faraday rotation mirror cavity is proposed and demonstrated. Comparing with single-channel detection in a conventional OFCS, a signal power gain of 6 dB and a signal-to-noise ratio improvement of over 30 dB have been achieved in the new scheme. The cavity amplifies magnetic field-induced nonreciprocal phase modulation, while the Faraday rotation mirrors suppress the reciprocal birefringence. A linear response is obtained for current amplitude as low as several mA at an AC frequency of 1 kHz.

Original language	English
Pages (from-to)	924-929
Number of pages	6
Journal	Applied Optics
Volume	50
Issue number	6
DOIs	https://doi.org/10.1364/AO.50.000924
State	Published - 20 Feb 2011
Externally published	Yes

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abstract = "A novel high sensitivity optical fiber current sensor (OFCS) based on polarization diversity and a Faraday rotation mirror cavity is proposed and demonstrated. Comparing with single-channel detection in a conventional OFCS, a signal power gain of 6 dB and a signal-to-noise ratio improvement of over 30 dB have been achieved in the new scheme. The cavity amplifies magnetic field-induced nonreciprocal phase modulation, while the Faraday rotation mirrors suppress the reciprocal birefringence. A linear response is obtained for current amplitude as low as several mA at an AC frequency of 1 kHz.",

author = "Hongying Zhang and Yongkang Dong and Jesse Leeson and Liang Chen and Xiaoyi Bao",

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AU - Zhang, Hongying

AU - Dong, Yongkang

AU - Leeson, Jesse

AU - Chen, Liang

AU - Bao, Xiaoyi

PY - 2011/2/20

Y1 - 2011/2/20

N2 - A novel high sensitivity optical fiber current sensor (OFCS) based on polarization diversity and a Faraday rotation mirror cavity is proposed and demonstrated. Comparing with single-channel detection in a conventional OFCS, a signal power gain of 6 dB and a signal-to-noise ratio improvement of over 30 dB have been achieved in the new scheme. The cavity amplifies magnetic field-induced nonreciprocal phase modulation, while the Faraday rotation mirrors suppress the reciprocal birefringence. A linear response is obtained for current amplitude as low as several mA at an AC frequency of 1 kHz.

AB - A novel high sensitivity optical fiber current sensor (OFCS) based on polarization diversity and a Faraday rotation mirror cavity is proposed and demonstrated. Comparing with single-channel detection in a conventional OFCS, a signal power gain of 6 dB and a signal-to-noise ratio improvement of over 30 dB have been achieved in the new scheme. The cavity amplifies magnetic field-induced nonreciprocal phase modulation, while the Faraday rotation mirrors suppress the reciprocal birefringence. A linear response is obtained for current amplitude as low as several mA at an AC frequency of 1 kHz.

UR - https://www.scopus.com/pages/publications/79951965654

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DO - 10.1364/AO.50.000924

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VL - 50

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JO - Applied Optics

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High sensitivity optical fiber current sensor based on polarization diversity and a Faraday rotation mirror cavity

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