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dc.contributor.authorXia, Ranen_US
dc.contributor.authorLuo, Yiyangen_US
dc.contributor.authorShum, Perry Pingen_US
dc.contributor.authorXiang, Yangen_US
dc.contributor.authorNi, Wenjunen_US
dc.contributor.authorLiu, Yusongen_US
dc.contributor.authorLam, Huy Quocen_US
dc.contributor.authorTang, Dingyuanen_US
dc.contributor.authorTang, Xiahuien_US
dc.identifier.citationXia, R., Luo, Y., Shum, P. P., Xiang, Y., Ni, W., Liu, Y., Lam, H. Q., Tang, D. & Tang, X. (2020). Vectorial nature in nonlinear multimode interference based ultrafast fiber lasers. IEEE Photonics Journal, 12(2).
dc.description.abstractRecent research on nonlinear multimode interference (NL-MMI) based mode-locking method provides a new approach for ultrafast all-fiber lasers. Here, we report on the polarization dynamics of group velocity locked vector solitons (GVLVSs) and noise-like vector pulses (NLVPs) in a graded-index multimode fiber (GIMF) based all-fiber laser. Due to the non-polarization sensitive characteristic of the NL-MMI, emitted pulses automatically evolve into the vector multi-pulse complexes constituting two orthogonally polarized components. Beyond the traditional polarization resolved measurement, dispersive Fourier transform (DFT) and polarization beam splitting techniques are jointly adopted to enable insights into the transient polarization dynamics of the vector solitons. It is found in real time that the two orthogonally polarized components oppositely shift their central wavelengths to compensate the polarization dispersion. In addition, stationary and pulsating NLVPs are respectively unfolded by the DFT based polarization resolved measurement. Especially, the pulsating NLVPs before and after polarization resolved measurement are accompanied with the identical periodic spectral breathing process. All these findings reveal the vectorial nature in NL-MMI based ultrafast fiber lasers, as well as highlight the transient polarization dynamics and the long-term pulsation in dissipative systems.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofIEEE Photonics Journalen_US
dc.rights© 2020 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleVectorial nature in nonlinear multimode interference based ultrafast fiber lasersen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.contributor.researchTemasek Laboratories @ NTUen_US
dc.contributor.researchResearch Techno Plazaen_US
dc.description.versionPublished versionen_US
dc.subject.keywordsMode-locked Fiber Laseren_US
dc.subject.keywordsVector Solitonen_US
dc.description.acknowledgementThis work was supported in part by the National Natural Science Foundation of China under Grant 61775067, in part by Singapore National Research Foundation Competitive Research Program (NRF-CRP-18-2017-02), and in part by Singapore Ministry of Education Academic Research Fund Tier 1 (MOE2019-T1-001-111).en_US
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