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Heterodyne photothermal spectroscopy of methane near 1651 nm inside hollow-core fiber using a bismuth-doped fiber amplifier

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dc.abstract.enWe present laser-based methane detection near 1651 nm inside an antiresonant hollow-core fiber (HCF) using photothermal spectroscopy (PTS). A bismuth-doped fiber amplifier capable of delivering up to more than 160 mW at 1651 nm is used to boost the PTS signal amplitude. The design of the system is described, and the impact of various experimental parameters (such as pump source modulation frequency, modulation amplitude, and optical power) on signal amplitude and signal-to-noise ratio is analyzed. Comparison with similar PTS/HCF-based systems is presented. With 1.3 m long HCF and a fiber amplifier for signal enhancement, this technique is capable of detecting methane at single parts-per-million levels, which makes this robust in-fiber sensing approach promising also for industrial applications such as, e.g., natural gas leak detection.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPysz, Dariusz
dc.contributor.authorBUCZYŃSKI, RYSZARD
dc.contributor.authorKlimczak, Mariusz
dc.contributor.authorStępniewski, Grzegorz
dc.contributor.authorFirstov, Sergei V.
dc.contributor.authorLobanov, Aleksey S.
dc.contributor.authorAlyshev, Sergey V.
dc.contributor.authorKhegai, Aleksandr M.
dc.contributor.authorKrajewska, Monika
dc.contributor.authorNIKODEM, MICHAŁ
dc.contributor.authorGomółka, Grzegorz
dc.date.accessioned2024-01-25T03:07:55Z
dc.date.available2024-01-25T03:07:55Z
dc.date.issued2021
dc.description.financePublikacja bezkosztowa
dc.description.numbernr 15
dc.description.volumevol. 60
dc.identifier.doi10.1364/AO.420044
dc.identifier.issn1559-128X
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/108408
dc.identifier.weblinkhttps://www.osapublishing.org/viewmedia.cfm?URI=ao-60-15-C84&seq=0
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofApplied Optics
dc.relation.pagesC84-C91, s. 1-8
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleHeterodyne photothermal spectroscopy of methane near 1651 nm inside hollow-core fiber using a bismuth-doped fiber amplifier
dc.typeJournalArticle
dspace.entity.typePublication