English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/154611
Share/Impact:
Statistics
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Improving the 1.5 µm photoluminescence emission of Er-doped fluorotellurite thin film glasses

AuthorsMorea, Roberta ; Fernández, T.T.; Fernández, J.; Balda, R.; Gonzalo, J.
Issue Date19-Sep-2016
PublisherEuropean Materials Research Society
CitationE-MRS Fall Meeting (2016)
AbstractRare earth doped materials play an important role in the development of all-optical networks. In particular, Er-doped waveguide amplifiers (EDWAs) based on the 4I13/2¿4I15/2 emission transition of Er3+ at 1.5 µm can enhance light signals on robust, low-cost, miniature chips. However, the glass hosting Er ions determines their photoluminescence response. In this regard, fluorotellurite glasses present clear advantages over other glasses, such as: a wide transmission region, high refractive index, good glass stability, high corrosion resistance and finally, they show high RE solubility and moderate phonon energy. In this work Er-doped TeO2-ZnO-ZnF2 film glasses are synthesized by Pulsed Laser Deposition, since they are promising to develop broadband EDWAs. Their structure is similar to that of the parent bulk glass and they present a very high transparency in the VIS-NIR wavelength range. However, their emission at 1.5 µm was poor. Thus, as-grown films underwent annealing cycles to improve their NIR emission but, at the same time, avoiding structural and optical modifications. In such a way, the optimal annealing cycle was determined. It led to a 20-fold increase of the emission intensity without affecting the glass film composition and structure. Therefore, the film transparency and refractive index did not vary upon annealing. The annealing significantly decreased the OH- content of the film glasses, which has a strong impact on the improvement of their NIR emission.
DescriptionE-MRS fall Meeting. Pulsed-laser deposition of thin films: 30 years of fundamentals, innovative materials and applications, Warsaw University of Technology, from September 19 to 22, 2016
URIhttp://hdl.handle.net/10261/154611
Appears in Collections:(CFMAC-IO) Comunicaciones congresos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf15,38 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.