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Proceedings Paper

Feature regulation and applications of M-FBG by laser ablation
Author(s): Xian Zhou; Yutang Dai; Bin Liu; Joseph Muna Karanja; Xiaoyan Wen; Jun Huang
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Paper Abstract

Fabricating microstructures into the cladding of fiber Bragg grating, the FBG sensors will have wider applications in magnetic field measurement or gas sensing. In present paper, we regulate the physical feature of FBG by ablating single or cross spiral micro-trench with femtosecond laser. The influences of different processing parameters on M-FBG (microstructured FBG) have been investigated. The waveform variations and its controlling method have been discussed. It is shown that, the central wavelength shift enlarged with increasing of the laser energy, or decreasing of scanning speed. Finally, a cross spiral type M-FBG magnetic field probe and a temperature probe are also demonstrated.

Paper Details

Date Published: 1 July 2015
PDF: 4 pages
Proc. SPIE 9655, Fifth Asia-Pacific Optical Sensors Conference, 965509 (1 July 2015); doi: 10.1117/12.2184243
Show Author Affiliations
Xian Zhou, Wuhan Univ. of Technology (China)
Yutang Dai, Wuhan Univ. of Technology (China)
Bin Liu, Wuhan Univ. of Technology (China)
Joseph Muna Karanja, Wuhan Univ. of Technology (China)
Xiaoyan Wen, Wuhan Univ. of Technology (China)
Jun Huang, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 9655:
Fifth Asia-Pacific Optical Sensors Conference
Byoungho Lee; Sang-Bae Lee; Yunjiang Rao, Editor(s)

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