PMID- 38263356 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240126 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 14 IP - 1 DP - 2024 Jan 23 TI - Unveiling optical soliton solutions and bifurcation analysis in the space-time fractional Fokas-Lenells equation via SSE approach. PG - 2000 LID - 10.1038/s41598-024-52308-9 [doi] LID - 2000 AB - The space-time fractional Fokas-Lenells (STFFL) equation serves as a fundamental mathematical model employed in telecommunications and transmission technology, elucidating the intricate dynamics of nonlinear pulse propagation in optical fibers. This study employs the Sardar sub-equation (SSE) approach within the STFFL equation framework to explore uncharted territories, uncovering a myriad of optical soliton solutions (OSSs) and conducting a thorough analysis of their bifurcations. The discovered OSSs encompass a diverse array, including bright-dark, periodic, multiple bright-dark solitons, and various other types, forming a captivating spectrum. These solutions reveal an intricate interplay among bright-dark solitons, complex periodic sequences, rhythmic breathers, coexistence of multiple bright-dark solitons, alongside intriguing phenomena like kinks, anti-kinks, and dark-bell solitons. This exploration, built upon meticulous literature review, unveils previously undiscovered wave patterns within the dynamic framework of the STFFL equation, significantly expanding the theoretical understanding and paving the way for innovative applications. Utilizing 2D, contour, and 3D diagrams, we illustrate the influence of fractional and temporal parameters on these solutions. Furthermore, comprehensive 2D, 3D, contour, and bifurcation analysis diagrams scrutinize the nonlinear effects inherent in the STFFL equation. Employing a Hamiltonian function (HF) enables detailed phase-plane dynamics analysis, complemented by simulations conducted using Python and MAPLE software. The practical implications of the discovered OSS solutions extend to real-world physical events, underlining the efficacy and applicability of the SSE scheme in solving time-space nonlinear fractional differential equations (TSNLFDEs). Hence, it is crucial to acknowledge the SSE technique as a direct, efficient, and reliable numerical tool, illuminating precise outcomes in nonlinear comparisons. CI - (c) 2024. The Author(s). FAU - Refaie Ali, Ahmed AU - Refaie Ali A AD - Department of Mathematics and Computer Science, Faculty of Science, Menoufia University, Shebin El Kom 32511, Menoufia, Egypt. ahmed.refaie@science.menofia.edu.eg. FAU - Alam, Md Nur AU - Alam MN AD - Department of Mathematics, Pabna University of Science and Technology, Pabna, 6600, Bangladesh. FAU - Parven, Mst Wahida AU - Parven MW AD - Department of Mathematics, Pabna University of Science and Technology, Pabna, 6600, Bangladesh. LA - eng PT - Journal Article DEP - 20240123 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM PMC - PMC10806098 COIS- The authors declare no competing interests. EDAT- 2024/01/24 00:43 MHDA- 2024/01/24 00:44 PMCR- 2024/01/23 CRDT- 2024/01/23 23:55 PHST- 2023/11/05 00:00 [received] PHST- 2024/01/17 00:00 [accepted] PHST- 2024/01/24 00:44 [medline] PHST- 2024/01/24 00:43 [pubmed] PHST- 2024/01/23 23:55 [entrez] PHST- 2024/01/23 00:00 [pmc-release] AID - 10.1038/s41598-024-52308-9 [pii] AID - 52308 [pii] AID - 10.1038/s41598-024-52308-9 [doi] PST - epublish SO - Sci Rep. 2024 Jan 23;14(1):2000. doi: 10.1038/s41598-024-52308-9.