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Hollow fiber coupler sensor

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dc.contributor.author Kuruba, Nithin Shekar
dc.date.accessioned 2018-12-12T17:33:07Z
dc.date.available 2018-12-12T17:33:07Z
dc.date.copyright 2018 en_US
dc.date.issued 2018-12-12
dc.identifier.uri https://dspace.library.uvic.ca//handle/1828/10404
dc.description.abstract This thesis presents a method to fabricate a robust optical directional coupler sensor using a solid core fiber (SCF) and a hollow core fiber (HCF). Through evanescent wave coupling mechanism, the optical power is exchanged between SCF and HCF. The hollow core of the HCF can be filled with liquid samples to alter the coupling ratio which imparts change in amount of light propagating through the SCF. Thus, it gives the coupler with ability of sensing refractive index of the sample with good sensitivity of 4.03 ± 0.50 volts per refractive index units (V/RIU) for refractive indices ranging from 1.331 ± 0.003 to 1.403 ± 0.003 with a resolution of 3.5 × 10−3 refractive index units (RIU). The SCF-HCF coupler was also used to sense the temperature based on the concept of temperature dependence on refractive index of the sample inside the hollow core of HCF. Further, the packaging methods are described that protect coupler from ambient environments and improves the life span of sensor. en_US
dc.language English eng
dc.language.iso en en_US
dc.rights Available to the World Wide Web en_US
dc.subject Optical directional coupler sensor en_US
dc.subject Solid core fiber en_US
dc.subject Refractive index en_US
dc.title Hollow fiber coupler sensor en_US
dc.type Thesis en_US
dc.contributor.supervisor Lu, Tao
dc.degree.department Department of Electrical and Computer Engineering en_US
dc.degree.level Master of Applied Science M.A.Sc. en_US
dc.description.scholarlevel Graduate en_US


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