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Proceedings Paper

Optical fibre gratings with response to 2µm and their sensing capabilities
Author(s): A. Adebayo; Z. Yan; L. Zhang; D. Robinson; P. Li; J. Leng
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Paper Abstract

Recently, we have extended fibre grating devices in to mid-IR range. Fibre Bragg gratings (FBGs) and long-period gratings (LPGs) with spectral responses from near-IR (800nm) to mid-IR ( ~ 2μm) have been demonstrated with transmission loss as strong as 10-20dB. 2μm FBG and LPG showed temperature and refractive index (RI) sensitivities of ~ 91pm/°C and 357nm/RIU respectively. Finally, we have performed a bio sensing experiment by monitoring the degradation of foetal bovine serum at room temperature. The results encouragingly show that the mid-IR LPGs can be an ideal biosensor platform as they have high RI sensitivity and can be used to detect concentration change of bio- samples.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842141 (17 October 2012); doi: 10.1117/12.968803
Show Author Affiliations
A. Adebayo, Aston Institute of Photonic Technologies (United Kingdom)
Z. Yan, Aston Institute of Photonic Technologies (United Kingdom)
L. Zhang, Aston Institute of Photonic Technologies (United Kingdom)
D. Robinson, Arden Photonics Ltd. (United Kingdom)
P. Li, Harbin Institute of Technology (China)
J. Leng, Harbin Institute of Technology (China)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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