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Proceedings Paper

Improved response time of laser etched polymer optical fiber Bragg grating humidity sensor
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Paper Abstract

The humidity sensor made of polymer optical fiber Bragg grating (POFBG) responds to the water content change in fiber induced by the change of environmental condition. The response time strongly depends on fiber size as the water change is a diffusion process. The ultrashort laser pulses have been providing an effective microfabrication method to achieve spatial localized modification in materials. In this work we used the excimer laser to create different microstructures (slot, D-shape) in POFBG to improve its performance. A significant improvement in the response time has been achieved in a laser etched D-shaped POFBG humidity sensor.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96343K (28 September 2015); doi: 10.1117/12.2194108
Show Author Affiliations
Wei Zhang, Aston Univ. (United Kingdom)
Xianfeng Chen, Bangor Univ. (United Kingdom)
Chen Liu, Bangor Univ. (United Kingdom)
Yuanfu Lu, Bangor Univ. (United States)
Shenzhen Institutes of Advanced Technology (China)
Marcos Cardoso, Univ. de São Paulo (Brazil)
David J. Webb, Aston Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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