Er3+-doped fluoride glass ceramics planar waveguides containing LaF3 or binary LaF3- ZrF4 nanocrystals have been fabricated by Physical Vapour Deposition (PVD). A quantitative analysis of the photoluminescence for the 1.5μm emission band of Er3+ ions has demonstrated that erbium ions are partitioned in both crystals and vitreous phase; the solubility of Er3+ in the segregated LaF3 nanocrystals can reach 30 mol% and the emission bandwidth has been found to be greater than that of the precursor glass (71nm at the half-height width). In order to increase the luminescence of Er3+, codoping with Yb3+ and Ce3+ has been investigated. The high Er3+ concentration and spectral width could make this nanostructured fluoride material suitable for planar amplifier in the C telecommunication band.
|Titolo:||Er3+/Yb3+/Ce3+ co-doped fluoride glass ceramics waveguides for application in the 1.5μm telecommunication window|
|Titolo del libro:||12th International ceramics congress|
|Data di pubblicazione:||2010|
|Digital Object Identifier (DOI):||10.4028/www.scientific.net/AST.71.16|
|Appare nelle tipologie:||2.1 Contributo in volume (Capitolo o Saggio)|