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Investigation of photodarkening in tandem-pumped Yb-doped fibers

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dc.contributor.authorPark, Jongseon-
dc.contributor.authorKim, Tae-hyung-
dc.contributor.authorOh, Yejin-
dc.contributor.authorPark, Eunji-
dc.contributor.authorKim, Ji Won-
dc.contributor.authorJeong, Hoon-
dc.date.accessioned2021-06-22T05:59:55Z-
dc.date.available2021-06-22T05:59:55Z-
dc.date.issued2020-09-
dc.identifier.issn1094-4087-
dc.identifier.urihttps://scholarworks.bwise.kr/erica/handle/2021.sw.erica/889-
dc.description.abstractInvestigation of photodarkening (PD) in Yb-doped fibers tandem-pumped at 1018 nm is reported. For a homemade Yb-doped aluminosilicate double-clad fiber (YADF), the transmitted power of a 633 nm probe beam is reduced by 2.4% over 2 hours for the tandem pumping configuration at 1018 nm, which is significantly smaller than 33.3% for a laser diode (LD) pumping at 976 nm. A tandem-pumped Yb fiber amplifier also shows a much smaller decrease in the amplified output power over time than a LD-pumped Yb fiber amplifier. Based on fluorescence spectra of the YADF, we can not only associate PD of the YADF to intrinsic oxygen deficiency centers or Tm3+ impurities but also confirm the impact of the excited Yb3+ ion density on PD. The benefits of the tandem pumping in a high-power Yb fiber laser system will be discussed. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement-
dc.format.extent8-
dc.language영어-
dc.language.isoENG-
dc.publisherOptical Society of America-
dc.titleInvestigation of photodarkening in tandem-pumped Yb-doped fibers-
dc.typeArticle-
dc.publisher.location미국-
dc.identifier.doi10.1364/OE.400094-
dc.identifier.scopusid2-s2.0-85092030253-
dc.identifier.wosid000569207700011-
dc.identifier.bibliographicCitationOptics Express, v.28, no.19, pp 27316 - 27323-
dc.citation.titleOptics Express-
dc.citation.volume28-
dc.citation.number19-
dc.citation.startPage27316-
dc.citation.endPage27323-
dc.type.docTypeArticle-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaOptics-
dc.relation.journalWebOfScienceCategoryOptics-
dc.subject.keywordPlusALUMINOSILICATE FIBERS-
dc.subject.keywordPlusPOWER-
dc.subject.keywordPlusLASER-
dc.subject.keywordPlusABSORPTION-
dc.subject.keywordPlusINVERSION-
dc.subject.keywordPlusKINETICS-
dc.subject.keywordPlusCENTERS-
dc.subject.keywordPlusOUTPUT-
dc.subject.keywordPlusGLASS-
dc.identifier.urlhttps://opg.optica.org/oe/fulltext.cfm?uri=oe-28-19-27316&id=437790-
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