Publication:
Graphene mode-locked femtosecond Alexandrite laser

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dc.contributor.coauthorKocabaş, Coşkun
dc.contributor.departmentDepartment of Physics
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.departmentLaser Research Laboratory
dc.contributor.facultymemberYes
dc.contributor.kuauthorCihan, Can
dc.contributor.kuauthorDemirbaş, Ümit
dc.contributor.kuauthorSennaroğlu, Alphan
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteResearch Center
dc.contributor.schoolcollegeinstituteLaboratory
dc.date.accessioned2024-11-09T23:13:38Z
dc.date.issued2018
dc.description.abstractWe report for the first time, to the best of our knowledge, graphene mode-locked operation of a femtosecond Alexandrite laser at 750 nm. A multipass-cavity configuration was employed to scale the output energy and to eliminate spectral/Q-switching instabilities. By using a monolayer graphene saturable absorber, mode locking could be obtained. With 5W of pinup at 532 nm, nearly transform-limited, 65 fs pulses with a time-bandwidth product of 0.319 were generated. The mode-locked laser operated at a pulse repetition rate of 5.56 MHz and produced 8 mW output power, corresponding to a pulse energy and peak power of 1.4 nJ and 22 kW, respectively. These experiments further show that graphene can be used to initiate mode locking at wavelengths as low as 750 nm. (C) 2018 Optical Society of America
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.indexedbyPubMed
dc.description.issue16
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.studentonlypublicationNo
dc.description.studentpublicationYes
dc.description.volume43
dc.identifier.WoSQuartileQ2
dc.identifier.doi10.1364/OL.43.003969
dc.identifier.eissn1539-4794
dc.identifier.endpage3972
dc.identifier.issn0146-9592
dc.identifier.issue16
dc.identifier.pubmed30106928
dc.identifier.scopus2-s2.0-85053661725
dc.identifier.startpage3969
dc.identifier.urihttps://doi.org/10.1364/OL.43.003969
dc.identifier.urihttps://hdl.handle.net/20.500.14288/10018
dc.identifier.volume43
dc.identifier.wos000441505100042
dc.keywordsAlexandrite laser
dc.keywords532 nm pump laser
dc.keywordsMultipass cavity
dc.keywordsGraphene saturable absorber
dc.keywords65 fs pulses
dc.keywordsChromium-doped laser
dc.language.isoeng
dc.publisherOSA - The Optical Society
dc.relation.ispartofOptics Letters
dc.subjectOptics
dc.subjectCavity configuration
dc.subjectGraphene saturable absorbers
dc.subjectTime bandwidth product
dc.subjectCompact femtosecond visible laser
dc.subjectMode locked operations
dc.titleGraphene mode-locked femtosecond Alexandrite laser
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorCihan, Can
local.contributor.kuauthorDemirbaş, Ümit
local.contributor.kuauthorSennaroğlu, Alphan
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