Publication:
Tunable laser operation of Tm3+:KY3F10 near 19 µm and 23 µm via upconversion pumping at 1064 nm

dc.contributor.coauthorTonelli, Mauro
dc.contributor.departmentDepartment of Physics
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.departmentSchool of Medicine
dc.contributor.kuauthorKamun, Eylül Nihan
dc.contributor.kuauthorMorova, Yağız
dc.contributor.kuauthorSennaroğlu, Alphan
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.contributor.schoolcollegeinstituteSCHOOL OF MEDICINE
dc.date.accessioned2024-11-09T23:59:10Z
dc.date.issued2021
dc.description.abstractWe experimentally demonstrate, for the first time to our knowledge, that upconversion pumping can be employed with a 1064-nm fiber laser to achieve tunable laser operation with 8 at. % Tm3+:KY3F10 crystal near 1.9 mu m, in addition to the previously explored upconversion pumping of the 2.3-mu m laser transition. Two different sets of cavity optics were used to investigate lasing at 1.9 and 2.3 mu m, corresponding to the laser transitions F-3(4)-H-3(6) and H-3(4)-H-3(5), respectively. In the case of the F-3(4)-H-3(6) laser transition, an x-cavity laser oscillator was constructed with a 2.3% output coupler and as high as 142 mW of output power was obtained at an incident pump power of 1.9 W at 1064 nm. Tunable laser operation could be obtained between 1849 and 1994 nm by using CaF2 and suprasil prisms. The highest slope efficiency of 29% with respect to average absorbed pump power was obtained with a 5.5% output coupler. For the case of 1.9 mu m lasing, it was further demonstrated that the nonlinear absorption of the crystal at 1064 nm depends on the intracavity laser intensity as well as the pump intensity. The H-3(4)-H-3(5) laser transition was also investigated with the same crystal in a z-cavity configuration under upconversion pumping, giving as high as 130 mW of output power at the central wavelength of 2344 nm with 1.6 W of incident pump power.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue8
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.volume38
dc.identifier.doi10.1364/JOSAB.424999
dc.identifier.eissn1520-8540
dc.identifier.issn0740-3224
dc.identifier.quartileQ3
dc.identifier.scopus2-s2.0-85108183926
dc.identifier.urihttps://doi.org/10.1364/JOSAB.424999
dc.identifier.urihttps://hdl.handle.net/20.500.14288/15576
dc.identifier.wos679997400005
dc.keywordsThulium lasers
dc.keywordsFiber laser
dc.keywordsWave-guide
dc.keywordsCrystal
dc.keywordsCw
dc.language.isoeng
dc.publisherOptical Soc Amer
dc.relation.ispartofJournal of The Optical Society of America B-Optical Physics
dc.subjectOptics
dc.titleTunable laser operation of Tm3+:KY3F10 near 19 µm and 23 µm via upconversion pumping at 1064 nm
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorMorova, Yağız
local.contributor.kuauthorKamun, Eylül Nihan
local.contributor.kuauthorSennaroğlu, Alphan
local.publication.orgunit1College of Sciences
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1SCHOOL OF MEDICINE
local.publication.orgunit1Research Center
local.publication.orgunit2Department of Physics
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2School of Medicine
local.publication.orgunit2Graduate School of Sciences and Engineering
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