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Enhancement of UV-visible transmission characteristics in wet-etched hollow core anti-resonant fibers

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cris.lastimport.scopus2024-02-12T20:25:17Z
dc.abstract.enWe report on the feasibility of short-wavelength transmission window modification in anti-resonant hollow core fibers using post-processing by hydrofluoric (HF) acid etching. Direct drawing of stacked anti-resonant hollow core fibers with sub-micron thin cladding capillary membranes is technologically challenging, but so far this has been the only proven method of assuring over an octave-spanning transmission windows across the visible and UV wavelengths. In this study we revealed that low HF concentration allows us to reduce the thickness of the cladding capillary membranes from the initial 760 nm down to 180 nm in a controlled process. The glass etching rates have been established for different HF concentrations within a range non-destructive to the anti-resonant cladding structure. Etching resulted in spectral blue-shifting and broadening of anti-resonant transmission windows in all tested fiber samples with lengths between 15 cm and 75 cm. Spectrally continuous transmission, extending from around 200 nm to 650 nm was recorded in 75 cm long fibers with cladding membranes etched down to thickness of 180 nm. The experiment allowed us to verify the applicability and feasibility of controlling a silica fiber post-processing technique, aimed at broadening of anti-resonant transmission windows in hollow core fibers. A practical application of the processed fiber samples is demonstrated with their simple butt-coupling to light-emitting diodes centered at various ultraviolet wavelengths between 265 nm and 365 nm.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorDinh, Khoa Xuan
dc.contributor.authorKlimczak, Mariusz
dc.contributor.authorBUCZYŃSKI, RYSZARD
dc.contributor.authorPysz, Dariusz
dc.contributor.authorStępniewski, Grzegorz
dc.contributor.authorLong, Van Cao
dc.contributor.authorHoang, Van Thuy
dc.contributor.authorKASZTELANIC, RAFAŁ
dc.date.accessioned2024-01-24T22:48:36Z
dc.date.available2024-01-24T22:48:36Z
dc.date.issued2021
dc.description.financePublikacja bezkosztowa
dc.description.number12
dc.description.volume29
dc.identifier.doi10.1364/OE.426388
dc.identifier.issn1094-4087
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/106236
dc.identifier.weblinkhttps://www.osapublishing.org/viewmedia.cfm?URI=oe-29-12-18243&seq=0
dc.languageeng
dc.pbn.affiliationphysical sciences
dc.relation.ispartofOptics Express
dc.relation.pages18243-18262
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.titleEnhancement of UV-visible transmission characteristics in wet-etched hollow core anti-resonant fibers
dc.typeJournalArticle
dspace.entity.typePublication