Optimization of Broadband Y-Junction Splitters in Fused Silica by Femtosecond Laser Writing

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Amorim, VA (Autor) Outra; Maia, JM (Autor) Outra; Alexandre, D (Autor) Outra; Marques, PVS (Autor) FCUP

Revista

Título: IEEE Photonics Technology Letters

Vol. 29

Páginas: 619-622

ISSN: 1041-1135

Editora: IEEE

Indexação

ISI Web of Knowledge - 8 Citações

Scopus - 9 Citações

Outras Informações

ID Authenticus: P-00M-G2P

DOI: 10.1109/lpt.2017.2675858

Abstract (EN): Optical Y-junction power splitters owe their inherent broadband spectral behavior to their design. However, depending on the fabrication technique employed, asymmetries in the junction might arise, perturbing its performance; this is the case in femtosecond laser written Y-junctions where one arm is typically written over the top of the other. In this letter, the spectral behavior of Y-junctions fabricated in fused silica by the femtosecond laser direct writing technique was analyzed and optimized for the first time, to the best of our knowledge. The junction arms output power balance as well as the corresponding spectral flatness between 1300 and 1600 nm is substantially increased by the implementation of an initial separation between the arms at the junction diverging point, enabling the manufacturing of balanced broadband Y-junctions.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4