| Texto completo | |
| Autor(es): |
Fernandes, Thiago Vecchi
;
Bordon, Camila Dias da Silva
;
Wetter, Niklaus Ursus
;
de Rossi, Wagner
;
Kassab, Luciana Reyes Pires
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MICROMACHINES; v. 16, n. 2, p. 14-pg., 2025-02-01. |
| Resumo | |
This study is focused on the fabrication and characterization of various dual waveguides through femtosecond (fs) laser irradiation of GeO2-based glass samples. The objective of the present work is to develop diverse waveguide configurations, namely straight, S-bend and Y-shaped waveguides within GeO2-PbO glasses embedded with silver nanoparticles, utilizing a double-guide platform, for photonic applications such as resonant rings and beam splitters. Enhanced guidance was observed with a larger radius of curvature (80 mm) among the two distinct S-bend waveguides produced. The maximum relative propagation loss was recorded for the S-bend waveguide with a 40 mm radius, while the minimum loss was noted for the Y-shaped waveguide. In the latter configuration, with an opening angle of 5 degrees and a separation of 300 mu m between the two arms, an output power ratio of 50.5/49.5 between the left and right arms indicated promising potential for beam splitter applications. During the study, the quality factor (M-2) of the proposed architectures was measured and the 80 mm S-bend configuration presented the best symmetry between the x and y axes; in the case of the Y configuration the similarity between the M-2 values in both axes, for the first and second arms, indicates comparable light guidance. (AU) | |
| Processo FAPESP: | 17/10765-5 - Lasers com alta eficiência e baixo limiar de operação em meios espalhadores e transparentes |
| Beneficiário: | Niklaus Ursus Wetter |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |
| Processo FAPESP: | 19/06334-4 - Dispositivos laser em sistemas microfluídicos para laboratórios de bolso descartáveis |
| Beneficiário: | Jessica Dipold |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |