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http://hdl.handle.net/10397/79079
Title: | Optical fiber-tip sensors based on in-situ mu-printed polymer suspended-microbeams | Authors: | Yao, M Ouyang, X Wu, JS Zhang, AP Tam, HY Wai, PKA |
Issue Date: | Jun-2018 | Source: | Sensors (Switzerland), June 2018, v. 18, no. 6, 1825 | Abstract: | Miniature optical fiber-tip sensors based on directly mu-printed polymer suspended-microbeams are presented. With an in-house optical 3D -printing technology, SU-8 suspended-microbeams are fabricated in situ to form Fabry-Perot (FP) micro-interferometers on the end face of standard single-mode optical fiber. Optical reflection spectra of the fabricated FP micro-interferometers are measured and fast Fourier transform is applied to analyze the cavity of micro-interferometers. The applications of the optical fiber-tip sensors for refractive index (RI) sensing and pressure sensing, which showed 917.3 nm/RIU to RI change and 4.29 nm/MPa to pressure change, respectively, are demonstrated in the experiments. The sensors and their optical mu-printing method unveil a new strategy to integrate complicated microcomponents on optical fibers toward lab-on-fiber' devices and applications. | Keywords: | Optical fiber-tip sensors Optical 3D mu-printing Refractive index sensors Gas-pressure sensors Lab-on-fiber |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Sensors (Switzerland) | ISSN: | 1424-8220 | DOI: | 10.3390/s18061825 | Rights: | © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). The following publication Yao, M.; Ouyang, X.; Wu, J.; Zhang, A.P.; Tam, H.-Y.; Wai, P.K.A. Optical Fiber-Tip Sensors Based on In-Situ µ-Printed Polymer Suspended-Microbeams. Sensors 2018, 18, 1825 is available at https://dx.doi.org/10.3390/s18061825 |
Appears in Collections: | Journal/Magazine Article |
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