publication . Part of book or chapter of book . 2015

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

Zhang, Wei; Chen, Xianfeng; Liu, Chen; Lu, Yuanfu; Cardoso, Marcos; Webb, David J.;
Open Access English
  • Published: 28 Sep 2015
  • Publisher: SPIE
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 ultra short laser pulses have been providing an effective micro fabrication 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.
Funded by
EC| SAFUEL
Project
SAFUEL
The SAfer FUEL system
  • Funder: European Commission (EC)
  • Project Code: 314032
  • Funding stream: FP7 | SP1 | TPT
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Part of book or chapter of book . 2015

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