In the paper, we present a miniature fiber-optic CO2 sensor by in-situ printing of a special polymer Fabry-Pérot (FP) microcavity on the end facet of standard single-mode optical fiber. A photo-crosslinkable poly(ionic liquid)s (PILs) with high CO2 adsorption capability has been developed to fabricate the polymer optical microcavity via an optical 3D µ-printing technology. Experimental results show that such an optical CO2 microsensor has very high sensitivity and fast response and thus is very promising for environment and exhaust gas monitoring applications.
Journal: TechConnect Briefs
Volume: 3, Biotech, Biomaterials and Biomedical: TechConnect Briefs 2017
Published: May 14, 2017
Pages: 235 - 238
Industry sector: Sensors, MEMS, Electronics
Topic: Sensors - Chemical, Physical & Bio