Spatiotemporal instability of femtosecond pulses in graded-index multimode fibers

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dc.citation.epage2198en_US
dc.citation.issueNumber24en_US
dc.citation.spage2195en_US
dc.citation.volumeNumber29en_US
dc.contributor.authorTeǧin, U.en_US
dc.contributor.authorOrtaç, B.en_US
dc.date.accessioned2018-04-12T11:03:16Z
dc.date.available2018-04-12T11:03:16Z
dc.date.issued2017en_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractWe study the spatiotemporal instability generated by a universal unstable attractor in normal dispersion graded-index multimode fiber for femtosecond pulses for the first time. Experimentally observed spatiotemporal instability sidebands are 91-THz detuned from the pump wavelength of 800 nm. Detailed analysis carried out numerically by employing coupled-mode pulse propagation model. Numerically obtained results are well-aligned with experimental observations. Spatial evolution of the total field and spatiotemporal instability sidebands is calculated numerically, and for the input pulses of 200-fs duration, formation and evolution of spatiotemporal instability are shown in both spatial and temporal domains. Our results present the unique features of spatiotemporal instability, such as remarkable frequency shift with inherited beam shape of instability sidebands.en_US
dc.identifier.doi10.1109/LPT.2017.2769343en_US
dc.identifier.issn1041-1135
dc.identifier.urihttp://hdl.handle.net/11693/37117
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.relation.isversionofhttps://doi.org/10.1109/LPT.2017.2769343en_US
dc.source.titleIEEE Photonics Technology Lettersen_US
dc.subjectGraded-index multimode fibersen_US
dc.subjectNonlinear fiber opticsen_US
dc.subjectSpatiotemporal pulse propagationen_US
dc.subjectUltra-short pulsesen_US
dc.subjectElectromagnetic pulseen_US
dc.subjectFibersen_US
dc.subjectStabilityen_US
dc.subjectUltrafast lasersen_US
dc.subjectUltrashort pulsesen_US
dc.subjectFormation and evolutionsen_US
dc.subjectGraded-Index Multimode fibersen_US
dc.subjectNonlinear Fiber-Opticsen_US
dc.subjectNormal dispersionen_US
dc.subjectPulse propagation modelen_US
dc.subjectSpatial evolutionen_US
dc.subjectSpatio-temporal instabilityen_US
dc.subjectSpatiotemporal pulseen_US
dc.subjectMultimode fibersen_US
dc.titleSpatiotemporal instability of femtosecond pulses in graded-index multimode fibersen_US
dc.typeArticleen_US

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Institute of Materials Science and Nanotechnology (UNAM)
Nanotechnology Research Center (NANOTAM)