Optic fiber magnetic field sensor based on the miniature pull-taper twin-core photonic crystal fiber

Jiansen Ye

doi:10.1117/12.2672693

10 April 2023 Optic fiber magnetic field sensor based on the miniature pull-taper twin-core photonic crystal fiber

Jiansen Ye

Proceedings Volume 12614, 14th International Photonics and Optoelectronics Meetings (POEM 2022); 126140Q (2023) https://doi.org/10.1117/12.2672693
Event: 14th International Photonics and Optoelectronics Meeting (POEM 2022), 2022, Wuhan, China

Abstract

In this paper, a optical fiber magnetic field sensor with the tapered twin-core photonic crystal fiber coupling structure has been presented and experimentally demonstrated. The magnetic fluid(MF) was injected into the air hole between two parallel fiber cores of the photonic crystal fiber, and then the two fiber cores of the twin-core photonic crystal fiber infiltrated with MF were tapered horizontally. A total reflection film was plated on the end face of the fusion cone of the twin-core photonic crystal fiber. The guided light was transmitted from the input port to the pull-cone area of the fiber, reflected by the reflection end face after mode coupling, and finally reflected from the output port to the output fiber. According to the above light transmission mode of reflective fiber coupler, The magnetic field measurement principle was studied, which the coupling region of twin-core photonic crystal fiber had been injected MF. The change of the effective refractive index will lead to the central wavelength shift of the fiber magnetic field coupler, and the magnetic field is measured by inquiring the wavelength shift of the transmission spectrum. The magnetic field response characteristics of the sensor were studied and analyzed through experiments. The experimental results show that the sensitivity of this method can reach 116pm/Oe. The fiber magnetic field sensor has the advantages of miniaturization, high sensitivity, and no electromagnetic interference. The magnetic field sensor can be widely used in the field of aviation, military, transportation, medicine and other fields of magnetic field accurate measurement.

Citation Download Citation

Jiansen Ye "Optic fiber magnetic field sensor based on the miniature pull-taper twin-core photonic crystal fiber", Proc. SPIE 12614, 14th International Photonics and Optoelectronics Meetings (POEM 2022), 126140Q (10 April 2023); https://doi.org/10.1117/12.2672693

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Photonic crystal fibers

Magnetism

Optical fibers

Magnetic sensors

Refractive index

Reflection

Fiber couplers

Show All Keywords

Keywords/Phrases

Search In:

Publication Years