128052 20240322114950.0 doi 10.1088/2040-8986/ac98d4 sideral 131052 ART-2022-131052 eng Marqués-García, J. Universidad de Zaragoza (orcid)0000-0003-2734-253X Generation of all-fiber ultrafast pulses at 2 µm by soliton self-frequency shift in highly nonlinear silica fiber 2022 Access copy available to the general public Unrestricted An efficient and straightforward method to obtain all-fiber pulsed sources at 2 μm is presented and experimentally demonstrated. It is based on the soliton self-frequency shift effect in a highly nonlinear fiber. The output power of a supercontinuum source is previously increased by an optimized homemade thulium-doped fiber amplifier. By coupling the amplified output power in a highly nonlinear fiber, the spectrum is shifted toward 130 nm and the spectral peak is located at 2014 nm. The power conversion factor reaches values as high as 0.93, without employing additional amplifiers. The mean spectral power of the 2 μm source reaches −4.6 dBm nm−1 (0.35 mW nm−1), its output power is 38 mW and the peak power of each pulse is higher than 27 kW. info:eu-repo/grantAgreement/ES/DGA/T20-20R info:eu-repo/semantics/openAccess by-nc-nd http://creativecommons.org/licenses/by-nc-nd/3.0/es/ 2.1 2022 OPTICS 65 / 99 = 0.657 2022 Q3 T2 0.558 2022 Electronic, Optical and Magnetic Materials 2022 Q2 Atomic and Molecular Physics, and Optics 2022 Q2 4.1 2022 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Jarabo, S. Universidad de Zaragoza (orcid)0000-0002-2523-8598 2002 647 Universidad de Zaragoza Dpto. Física Aplicada Área Óptica 5008 250 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Electrónica 24, 12 (2022), 125501[4 pp.] J. opt. Journal of Optics (United Kingdom) 2040-8978 398917 http://zaguan.unizar.es/record/128052/files/texto_completo.pdf Postprint 2116158 http://zaguan.unizar.es/record/128052/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:128052 articulos driver 2024-03-22-11:48:06 ARTICLE