Journal
OPTICS AND LASER TECHNOLOGY
Volume 44, Issue 4, Pages 899-902Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2011.11.011
Keywords
Optical fiber F-P sensor; Magnetic field sensor; Magnetic fluid
Categories
Funding
- Program for New Century Excellent Talents in University [NCET-08-0102]
- Specialized Research Fund for the Doctoral Program of Higher Education [20100042110029]
- National Science Foundation of China [61074170]
- Fundamental Research Funds for the Central Universities [090504002, 100404006]
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Based on the characteristic of magnetic-controlling refractive index, the magnetic fluid filled in hollow-core photonic crystal fiber (HC-PCF) can be used as the sensitive medium in the cavity of a fiber Fabry-Perot (F-P) magnetic field sensor. The structure and the sensor principle are introduced. The theoretical simulations of the mode distribution of the HC-PCF filled with the magnetic fluid and the sensor output spectra are discussed in detail. The sensor multiplexing capability is indicated as well. Magnetic field measurement sensitivity is about 33 pm/Oe based on the proposed sensor. (C) 2011 Elsevier Ltd. All rights reserved.
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