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Title: Characterisation and performance of a terfenol-d coated femtosecond laser inscribed optical fibre bragg sensor with a laser ablated microslot for the detection of static magnetic fields
Authors: Kalli, Kyriacos 
Smith, Graham N. 
Allsop, Thomas D P 
Neal, Ron M. 
Sugden, Kate 
Culverhouse, Phil F. 
Bennion, Ian 
Koutsides, Charalambos 
Keywords: Optical fibers;Magnetic fields;Femtosecond lasers
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 3-Jan-2011
Publisher: Osa
Source: Optics Express, 2011,vol.19, no.1, pp. 363-370
Journal: Optics Express 
Abstract: We present a novel device for the characterisation of static magnetic fields through monitoring wavelength shifts of femtosecond inscribed fibre Bragg grating and micromachined slot, coated with Terfenol-D. The device was sensitive to static magnetic fields and can be used as a vectoral sensor for the detection of magnetic fields as low as 0.046 mT with a resolution of ± 0.3mT in transmission and ± 0.7mT in reflection. The use of a femtosecond laser to both inscribe the FBGs and micromachine the slot in a single stage prior to coating the device significantly simplifies the fabrication.
ISSN: 1094-4087
DOI: 10.1364/OE.19.000363
Rights: © 2010 Optical Society of America.
Type: Article
Appears in Collections:Άρθρα/Articles

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