| Texto completo | |
| Autor(es): |
Castrillon, S. Sergio
;
Marulanda, A. Esteban
;
Steinberg, David
;
Perez, Andres Betancur
;
Botia, Javier F.
;
Cardenas, Ana M.
;
Saito, Lucia A. M.
;
de Souza, E. A. Thoroh
;
Zapata, Juan D.
Número total de Autores: 9
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Lightwave Technology; v. 42, n. 23, p. 9-pg., 2024-12-01. |
| Resumo | |
This work presents a stable and switchable dual-band generation from a polarization-dependent Erbium-doped fiber laser mode-locked by monolayer graphene as a saturable absorber. The ultrashort generated pulses at single band exhibit spectral (temporal) widths of 8.8 nm (305 fs) and 9 nm (384 fs) at 1536 nm and 1557 nm, respectively, while the simultaneous dual-band state ensured a spectral width of 5 and 6 nm for both wavelengths, which are the best dual-band mode-locked performances of the literature obtained from an EDFL. Also, its dual-band spectral evolution was analyzed by changing the pumping power and the intracavity polarization state via a motorized polarization controller. Finally, our simulation provided an excellent qualitative explanation of the laser switching as a function of pumping power due to the change in EDF gain. We found a relative percentage error between experimental results and simulation of 22.7%, 13.3%, 9%, and 8.3% for 1530 nm, 1556 nm, and dual-band left and right central wavelength, respectively. (AU) | |
| Processo FAPESP: | 22/08932-9 - Diodos emissores de luz (LEDs) baseados em heteroestruturas bidimensionais de Van der Waals para aplicações em telecomunicações e sensoriamento |
| Beneficiário: | Eunezio Antonio de Souza |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |