An integrated pump-controlled variable coupler fabricated by ultrafast laser writing

Benedicto, David (Universidad de Zaragoza) ; Martín, Juan C. (Universidad de Zaragoza) ; Dias-Ponte, Antonio ; Solis, Javier ; Vallés, Juan A. (Universidad de Zaragoza)

Resumen: 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.

Idioma: Inglés

DOI: 10.3390/mi14071370

Año: 2023

Publicado en: Micromachines 14, 7 (2023), 1370 [10 pp.]
ISSN: 2072-666X

Factor impacto JCR: 3.0 (2023)

Categ. JCR: CHEMISTRY, ANALYTICAL rank: 41 / 106 = 0.387 (2023) - Q2 - T2
Categ. JCR: INSTRUMENTS & INSTRUMENTATION rank: 26 / 76 = 0.342 (2023) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 67 / 179 = 0.374 (2023) - Q2 - T2
Categ. JCR: NANOSCIENCE & NANOTECHNOLOGY rank: 84 / 141 = 0.596 (2023) - Q3 - T2

Factor impacto CITESCORE: 5.2 - Control and Systems Engineering (Q2) - Mechanical Engineering (Q2) - Electrical and Electronic Engineering (Q2)

Factor impacto SCIMAGO: 0.549 - Electrical and Electronic Engineering (Q2) - Mechanical Engineering (Q2) - Control and Systems Engineering (Q2)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-23R
Financiación: info:eu-repo/grantAgreement/ES/MICINN-AEI/PID2019-108598GB-I00/AEI/10.13039/501100011033
Financiación: info:eu-repo/grantAgreement/ES/MICINN/PID2020-112770RB-C21

Tipo y forma: Article (Published version)

Área (Departamento): Área Electromagnetismo (Dpto. Física Aplicada)
Área (Departamento): Área Óptica (Dpto. Física Aplicada)