Spatial beam self-cleaning accompanied by self-similar propagation in few-mode graded-index fiber

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buir.contributor.authorOrtaç, Bülend
buir.contributor.orcidOrtaç, Bülend|0000-0002-1104-7459
dc.citation.epage2145en_US
dc.citation.issueNumber8
dc.citation.spage2139
dc.citation.volumeNumber40
dc.contributor.authorGraini, Leila
dc.contributor.authorOrtaç, Bülend
dc.date.accessioned2024-03-08T15:17:14Z
dc.date.available2024-03-08T15:17:14Z
dc.date.issued2023-07-20
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)
dc.departmentNanotechnology Research Center (NANOTAM)
dc.description.abstractWe numerically investigated a nonlinear Kerr beam self-cleaning (KBSC) dynamics accompanied by self-similar propagation regimes, which leads to single-mode parabolic pulse reshaping and simultaneously high beam quality based on KBSC, for special distributions of initially excited modes in graded-index multimode fiber (GRIN-MMF). We coupled a Gaussian pulse at 1060 nm, with 100 fs duration, into GRIN-MMF supporting 10 modes that fall into four discrete mode groups. As a result, by using initial powers below the KBSC threshold reported in the literature, the output spatial beam evolves from a speckled pattern into a bell-shaped beam; hence, the generated parabolic pulse is mainly carried by the fundamental mode, which is boosted by the KBSC process. We also provide promising indications for KBSC on different higher-order modes.
dc.description.provenanceMade available in DSpace on 2024-03-08T15:17:14Z (GMT). No. of bitstreams: 1 Spatial_beam_self-cleaning_accompanied_by_self-similar_propagation_in_few-mode_graded-index_fiber.pdf: 12356235 bytes, checksum: cbfaff07e7c5515d5148f091f7b819d7 (MD5) Previous issue date: 2023-08en
dc.identifier.doi10.1364/JOSAB.491586
dc.identifier.eissn1520-8540
dc.identifier.issn0740-3224
dc.identifier.urihttps://hdl.handle.net/11693/114424
dc.language.isoen
dc.publisherOptica Publishing Group (formerly OSA)
dc.relation.isversionofhttps://doi.org/10.1364/JOSAB.491586
dc.rightsCC BY 4.0 DEED (Attribution 4.0 International)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.source.titleJournal of the Optical Society of America B
dc.subjectMultimode fibers
dc.subjectgraded-index fibres
dc.subjectgraded-index multimode fibers
dc.subjecthigh beam quality
dc.subjectparabolic pulse
dc.subjectpropagation regimes
dc.subjectpulse reshaping
dc.subjectself cleaning
dc.subjectself-similar propagation
dc.subjectsingle mode
dc.subjectspatial beams
dc.subjectGaussian beams
dc.titleSpatial beam self-cleaning accompanied by self-similar propagation in few-mode graded-index fiber
dc.typeArticle

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