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

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dc.citation.articleNumber11004
dc.citation.issueNumber1
dc.citation.journalTitleOptical Engineering
dc.citation.volumeNumber57
dc.contributor.authorGiglio, Marilena
dc.contributor.authorPatimisco, Pietro
dc.contributor.authorSampaolo, Angelo
dc.contributor.authorKriesel, Jason M.
dc.contributor.authorTittel, Frank K.
dc.contributor.authorSpagnolo, Vincenzo
dc.date.accessioned2017-09-19T18:39:59Z
dc.date.available2017-09-19T18:39:59Z
dc.date.issued2018
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.
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.
dc.identifier.digitalLow-loss_single-mode_tapered_hollow-core_waveguides
dc.identifier.doihttps://doi.org/10.1117/1.OE.57.1.011004
dc.identifier.urihttps://hdl.handle.net/1911/97408
dc.language.isoeng
dc.publisherSPIE
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.
dc.titleLow-loss and single-mode tapered hollow-core waveguides optically coupled with interband and quantum cascade lasers
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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