126813 20241125101142.0 doi 10.3390/mi14071370 sideral 134227 ART-2023-134227 eng Benedicto, David Universidad de Zaragoza (orcid)0000-0002-3867-2182 An integrated pump-controlled variable coupler fabricated by ultrafast laser writing 2023 Access copy available to the general public Unrestricted The design and fabrication of a integrated symmetric directional coupler dependent o the pumping power and operating at a 1534 nm wavelength is reported. The twin-core waveguide was inscribed into Er3+/Yb3+ co-doped phosphate glass by a femtosecond laser direct writing technique. By optical pumping, the coupling ratio can be modulated due to the changes induced in the refractive index of the material. The experimental results demonstrated that the coupling ratio can be tuned continuously from 100/0 to 50/50 by increasing the pump’s power from 0 to 350 mW. The developed twin-core coupler has promising applications for on-chip all-optical signal processing and communication systems. info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-23R info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-108598GB-I00/AEI/10.13039/501100011033 info:eu-repo/grantAgreement/ES/MICINN/PID2020-112770RB-C21 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 3.0 2023 CHEMISTRY, ANALYTICAL 41 / 106 = 0.387 2023 Q2 T2 INSTRUMENTS & INSTRUMENTATION 26 / 76 = 0.342 2023 Q2 T2 PHYSICS, APPLIED 67 / 179 = 0.374 2023 Q2 T2 NANOSCIENCE & NANOTECHNOLOGY 84 / 141 = 0.596 2023 Q3 T2 0.549 2023 Electrical and Electronic Engineering 2023 Q2 Mechanical Engineering 2023 Q2 Control and Systems Engineering 2023 Q2 5.2 2023 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Martín, Juan C. Universidad de Zaragoza (orcid)0000-0002-8738-753X Dias-Ponte, Antonio Solis, Javier Vallés, Juan A. Universidad de Zaragoza (orcid)0000-0001-8431-0003 2002 247 Universidad de Zaragoza Dpto. Física Aplicada Área Electromagnetismo 2002 647 Universidad de Zaragoza Dpto. Física Aplicada Área Óptica 14, 7 (2023), 1370 [10 pp.] Micromachines (Basel) Micromachines 2072-666X 2627760 http://zaguan.unizar.es/record/126813/files/texto_completo.pdf Versión publicada 2611263 http://zaguan.unizar.es/record/126813/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:126813 articulos driver 2024-11-22-12:03:05 ARTICLE