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dc.contributor.authorXu, Zhilinen_US
dc.contributor.authorLi, Baochengen_US
dc.contributor.authorHu, Dora Juan Juanen_US
dc.contributor.authorWu, Zhifangen_US
dc.contributor.authorErtman, Slawomiren_US
dc.contributor.authorWolinski, Tomaszen_US
dc.contributor.authorTong, Weijunen_US
dc.contributor.authorShum, Perry Pingen_US
dc.identifier.citationXu, Z., Li, B., Hu, D. J. J., Wu, Z., Ertman, S., Wolinski, T., . . . Shum, P. P. (2018). Hybrid photonic crystal fiber for highly sensitive temperature measurement. Journal of Optics, 20(7), 075801-. doi:10.1088/2040-8986/aaca4een_US
dc.description.abstractA hybrid photonic crystal fiber (PCF) is proposed and demonstrated for highly sensitive temperature measurement. The hybrid PCF is formed by selectively infiltrating liquid crystal 5CB into the first ring of air holes around one silica core of a twin-core PCF (TCPCF). In the modified TCPCF, one silica core guides light with a total internal reflection (TIR) mechanism, while the other silica core guides light through a photonic bandgap (PBG) mechanism, due to the infiltration of high refractive index 5CB. The co-existing of TIR and PBG waveguiding mechanisms in the TCPCF leads to a hybrid light guiding mechanism PCF, i.e. hybrid PCF. Theoretical analysis reveals that the TIR-guided core mode, PBG-guided core modes and 5CB channel modes in the hybrid PCF can concurrently propagate and interfere with each other, which is further verified by experimental results. Besides, experimental investigation on the temperature response of the hybrid PCF shows that the temperature sensitivities can be up to 4.91 nm °C−1 for nematic phase of 5CB, and −3.68 nm °C−1 for isotropic phase of 5CB, respectively. The proposed hybrid PCF is promising for applications of temperature-tunable optical filtering in optical fiber communication, sensing and laser systems.en_US
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en_US
dc.description.sponsorshipMOE (Min. of Education, S’pore)en_US
dc.relation.ispartofJournal of Opticsen_US
dc.rights© 2018 IOP Publishing Ltd. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleHybrid photonic crystal fiber for highly sensitive temperature measurementen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.organizationCNRS International NTU THALES Research Allianceen_US
dc.subject.keywordsFiber Optics Sensorsen_US
dc.subject.keywordsLiquid Crystalen_US
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