| Authors: |
G.N. Smith, T. Allsop, K. Kalli, C. Koutsides, R. Neal, K. Sugden, P. Culverhouse, I. Bennion
|
| 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.
|
| Year: |
2011
|
| Start Page: |
363
|
| End Page: |
370
|
| Journal title: |
Optics Express
|
| Volume: |
19
|
| Issue: |
1
|
| DOI: |
10.1364/OE.19.000363
|
| Image: |
|