Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop
Abstract This paper proposes a novel magnetic field sensor based on a microfiber coupler (MFC) combined with a magnetic fluid (MF) in a Sagnac loop formed from a polarization maintaining fiber (PMF). Thanks to the small (~2.6 μm) waist diameter of the MFC, the resulting interference is strongly infl...
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Nature Portfolio
2017
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oai:doaj.org-article:f4ae5800d1584f77b3567105487a4e652021-12-02T16:08:09ZMagnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop10.1038/s41598-017-05199-y2045-2322https://doaj.org/article/f4ae5800d1584f77b3567105487a4e652017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05199-yhttps://doaj.org/toc/2045-2322Abstract This paper proposes a novel magnetic field sensor based on a microfiber coupler (MFC) combined with a magnetic fluid (MF) in a Sagnac loop formed from a polarization maintaining fiber (PMF). Thanks to the small (~2.6 μm) waist diameter of the MFC, the resulting interference is strongly influenced by the presence of the MF and this leads to the desirable high sensitivity of the structure to the applied magnetic field. The maximum magnetic field sensitivities of −100 pm/mT and −488 pm/mT have been experimentally demonstrated with the PMF lengths of 75 cm and 20 cm respectively in the range of magnetic field strengths from 0 to 200 mT. The dependence of the magnetic field orientation on the performance of the proposed sensor was also examined. The proposed magnetic field sensor is advantageous for applications requiring higher sensitivity over a wide magnetic field range.Fangfang WeiArun Kumar MallikDejun LiuQiang WuGang-Ding PengGerald FarrellYuliya SemenovaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017) |
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Medicine R Science Q Fangfang Wei Arun Kumar Mallik Dejun Liu Qiang Wu Gang-Ding Peng Gerald Farrell Yuliya Semenova Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
description |
Abstract This paper proposes a novel magnetic field sensor based on a microfiber coupler (MFC) combined with a magnetic fluid (MF) in a Sagnac loop formed from a polarization maintaining fiber (PMF). Thanks to the small (~2.6 μm) waist diameter of the MFC, the resulting interference is strongly influenced by the presence of the MF and this leads to the desirable high sensitivity of the structure to the applied magnetic field. The maximum magnetic field sensitivities of −100 pm/mT and −488 pm/mT have been experimentally demonstrated with the PMF lengths of 75 cm and 20 cm respectively in the range of magnetic field strengths from 0 to 200 mT. The dependence of the magnetic field orientation on the performance of the proposed sensor was also examined. The proposed magnetic field sensor is advantageous for applications requiring higher sensitivity over a wide magnetic field range. |
format |
article |
author |
Fangfang Wei Arun Kumar Mallik Dejun Liu Qiang Wu Gang-Ding Peng Gerald Farrell Yuliya Semenova |
author_facet |
Fangfang Wei Arun Kumar Mallik Dejun Liu Qiang Wu Gang-Ding Peng Gerald Farrell Yuliya Semenova |
author_sort |
Fangfang Wei |
title |
Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
title_short |
Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
title_full |
Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
title_fullStr |
Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
title_full_unstemmed |
Magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a Sagnac loop |
title_sort |
magnetic field sensor based on a combination of a microfiber coupler covered with magnetic fluid and a sagnac loop |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doaj.org/article/f4ae5800d1584f77b3567105487a4e65 |
work_keys_str_mv |
AT fangfangwei magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT arunkumarmallik magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT dejunliu magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT qiangwu magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT gangdingpeng magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT geraldfarrell magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop AT yuliyasemenova magneticfieldsensorbasedonacombinationofamicrofibercouplercoveredwithmagneticfluidandasagnacloop |
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1718384631318839296 |