Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers

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dc.citation.articleNumber11004en_US
dc.citation.issueNumber1en_US
dc.citation.journalTitleOptical Engineeringen_US
dc.citation.volumeNumber57en_US
dc.contributor.authorGiglio, Marilenaen_US
dc.contributor.authorPatimisco, Pietroen_US
dc.contributor.authorSampaolo, Angeloen_US
dc.contributor.authorKriesel, Jason M.en_US
dc.contributor.authorTittel, Frank K.en_US
dc.contributor.authorSpagnolo, Vincenzoen_US
dc.date.accessioned2017-09-19T18:39:59Zen_US
dc.date.available2017-09-19T18:39:59Zen_US
dc.date.issued2018en_US
dc.description.abstractWe report single-mode midinfrared laser beam delivery through a 50-cm-long tapered hollow-core waveguide (HCW) having bore diameter linearly increasing from 200 to 260  μm. We performed theoretical calculations to identify the best HCW-laser coupling conditions in terms of optical losses and single-mode fiber output. To validate our modeling, we coupled the HCW with an interband cascade laser and four quantum cascade lasers with their emission wavelengths spanning 3.5 to 7.8  μm, using focusing lenses with different focal lengths. With the best coupling conditions, we achieved single-mode output in the investigated 3.5 to 7.8  μm spectral range, with minimum transmission losses of 1.27 dB at 6.2  μm.en_US
dc.identifier.citationGiglio, Marilena, Patimisco, Pietro, Sampaolo, Angelo, et al.. "Low-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers." <i>Optical Engineering,</i> 57, no. 1 (2018) SPIE: https://doi.org/10.1117/1.OE.57.1.011004.en_US
dc.identifier.digitalLow-loss_single-mode_tapered_hollow-core_waveguidesen_US
dc.identifier.doihttps://doi.org/10.1117/1.OE.57.1.011004en_US
dc.identifier.urihttps://hdl.handle.net/1911/97408en_US
dc.language.isoengen_US
dc.publisherSPIEen_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.titleLow-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasersen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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