Long-period fiber grating within d-shaped fiber using magnetic fluid for magnetic-field detection
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Article number | 6338993 |
| Pages (from-to) | 2095-2104 |
| Journal / Publication | IEEE Photonics Journal |
| Volume | 4 |
| Issue number | 6 |
| Publication status | Published - 2012 |
Link(s)
| DOI | DOI |
|---|---|
| Attachment(s) | Documents
|
| Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-84870262138&origin=recordpage |
| Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(dff1adfa-ed6a-41d6-b722-9d5df4e119c3).html |
Abstract
A magnetic sensor utilizing long-period fiber grating (LPFG) written by high frequency CO2 laser pulses in a D-shaped fiber and the magneto-optical effect of magnetic fluid is proposed. Because of the high evanescent field of the grating structure in D-shaped fiber, by immersing the LPFG with a period of 685 μm into a water-based magnetic fluid within a capillary tube, the redshift as high as 33.5 nm of the resonant wavelength of the grating is observed when the external magnetic-field intensity is 189.7 mT, resulting in a sensitivity of 176.4 pm/mT. The hysteresis effect is observed and explained by the characters of magnetic fluid. Such kind of sensors would find potential applications in magnetic sensing fields. © 2012 IEEE.
Research Area(s)
- fiber gratings, light-material interactions, Sensors
Citation Format(s)
Long-period fiber grating within d-shaped fiber using magnetic fluid for magnetic-field detection. / Gao, Lei; Zhu, Tao; Deng, Ming et al.
In: IEEE Photonics Journal, Vol. 4, No. 6, 6338993, 2012, p. 2095-2104.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
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