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Side-Polished Single-Mode-Multimode-Single-Mode Fiber Structure for the Vector Magnetic Field Sensing

A vector magnetometer, composed of a side-polished single-mode-multimode-single-mode fiber structure coated with ferrofluids, is proposed and investigated. The side-polishing of the multimode fiber can expose the evanescent field to the surrounding ferrofluids, whose refractive index in the vicinity of the polished surface can be tuned by both the intensity and direction of the applied magnetic field, thus in turn realizing the magnetic vector sensing. The sensing principles are illustrated in details, and the sensing performances, especially the dependence on the residual thickness (RT) of the side-polished multimode fiber, are well investigated experimentally. It is found that the decrease of the RT can significantly improve the sensitivity to both the magnetic field intensity and the direction, and the highest intensity and direction sensitivities of -0.053 nm/Oe and -5.68 nm/degree have been achieved respectively, when the RT reduces to 50.5 μm. The proposed vector magnetometer, featuring the advantages of simple structure, low cost, and ease of fabrication, can find the potential applications in the fields such as industry, military, and environment.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.38 No.20 October 15 2020

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5837 - 5843

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

FERROFLUIDS
SIDE-POLISHED FIBER
SINGLE-MODE-MULTIMODE-SINGLE-MODE
VECTOR MAGNETIC FIELD SENSING

Info Detail Spesifik

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Pernyataan Tanggungjawab

Yaofei Chen, Yuchan Hu, Hongda Cheng, Feng Yan, Qianyu Lin, Yu Chen, Pengjun Wu, Lei Chen, Guishi Liu, Gangding Peng, Yunhan Luo, Zhe Chen

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