Optical fibre gratings with response to 2μm and their sensing capabilities

Adebayo, A.; Yan, Z.; Zhang, L.; Robinson, D.; Li, P. and Leng, J. (2012). Optical fibre gratings with response to 2μm and their sensing capabilities. IN: OFS2012 22nd international conference on Optical Fiber Sensors. Liao, Yanbiao; Jin, Wei; Sampson, David D. and et al, (eds) SPIE proceedings . Bellingham, WA (US): SPIE.

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.

Publication DOI: https://doi.org/10.1117/12.968803
Divisions: Engineering & Applied Sciences > Institute of Photonics
Engineering & Applied Sciences > Electrical, electronic & power engineering
Additional Information: A. Adebayo ; Z. Yan ; L. Zhang ; D. Robinson ; P. Li and J. Leng; "Optical fibre gratings with response to 2µm and their sensing capabilities", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842141 (October 4, 2012). Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. DOI: http://dx.doi.org/10.1117/12.968803
Event Title: 22nd international conference on Optical Fiber Sensors
Event Type: Other
Event Dates: 2012-10-14 - 2012-10-19
Uncontrolled Keywords: fibre Bragg grating,foetal bovine serum,long period grating,refractive index sensing,Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
Published Date: 2012-10-04

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