Hollow-Core Photonic Crystal Fiber Mach-Zehnder Interferometer for Gas Sensing

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dc.contributor.authorNazeri, Kaveh
dc.contributor.authorAhmed, Farid
dc.contributor.authorAhsani, Vahid
dc.contributor.authorJoe, Hang-Eun
dc.contributor.authorBradley, Colin
dc.contributor.authorToyserkani, Ehsan
dc.contributor.authorJun, Martin B. G.
dc.date.accessioned2020-06-04T21:28:22Z
dc.date.available2020-06-04T21:28:22Z
dc.date.copyright2020en_US
dc.date.issued2020
dc.description.abstractA novel and compact interferometric refractive index (RI) point sensor is developed using hollow-core photonic crystal fiber (HC-PCF) and experimentally demonstrated for high sensitivity detection and measurement of pure gases. To construct the device, the sensing element fiber (HC-PCF) was placed between two single-mode fibers with airgaps at each side. Great measurement repeatability was shown in the cyclic test for the detection of various gases. The RI sensitivity of 4629 nm/RIU was demonstrated in the RI range of 1.0000347–1.000436 for the sensor with an HC-PCF length of 3.3 mm. The sensitivity of the proposed Mach–Zehnder interferometer (MZI) sensor increases when the length of the sensing element decreases. It is shown that response and recovery times of the proposed sensor inversely change with the length of HC-PCF. Besides, spatial frequency analysis for a wide range of air-gaps revealed information on the number and power distribution of modes. It is shown that the power is mainly carried by two dominant modes in the proposed structure. The proposed sensors have the potential to improve current technology’s ability to detect and quantify pure gases.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipThe Natural Sciences and Engineering Research Council (NSERC) of Canada and Korea Carbon Capture and Sequestration R&D Center (KCRC) supported this work.en_US
dc.identifier.citationNazeri, K.; Ahmed, F.; Ahsani, V.; Joe, H.; Bradley, C.; Toyserkani, E.; & Jun, M. B. G. (2020). Hollow-core photonic crystal fiber Mach-Zehnder interferometer for gas sensing. Sensors, 20(10), article 2807. DOI: 10.3390/s20102807en_US
dc.identifier.urihttps://doi.org/10.3390/s20102807
dc.identifier.urihttp://hdl.handle.net/1828/11792
dc.language.isoenen_US
dc.publisherSensorsen_US
dc.subjectrefractive index sensor
dc.subjectgas sensor
dc.subjecthollow-core photonic crystal fiber
dc.subjectMach-Zehnder interferometer
dc.subject.departmentDepartment of Mechanical Engineering
dc.titleHollow-Core Photonic Crystal Fiber Mach-Zehnder Interferometer for Gas Sensingen_US
dc.typeArticleen_US

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