Concentration quenching in erbium-doped tellurite glasses

Spectroscopic calculation of NaYF4 contained transparent glass ceramics doped with different content of Nd3+

“…The anterior increasing of the lifetime and the quantum efficiency might be explained by the enhanced volume fraction of NaYF 4 due to more nucleation centers introduced to the system [21], which leads more Nd 3+ ions incorporated in the crystallites performing longer lifetime and higher quantum efficiency. When the content of Nd 3+ reaches 3.0%, the close distance between Nd 3+ ion pairs induces the concentration quenching [22][23][24][25][26], resulting in the posterior decrease in both lifetime and quantum efficiency.…”

Index matching between passive and active tellurite glasses for use in microstructured fiber lasers: Erbium doped lanthanum-tellurite glass

“…The potential of La 2 O 3 for index matching in tellurite glass is illustrated by the bulk glass measurements reported in Ref [10].…”

Optical properties of Nd3+-doped and Er3+–Yb3+ codoped borotellurite glass for use in NIR lasers and fiber amplifiers

“…Generally, inhomogeneous broadening is dominant for the Er 3+ in glasses, as a result of variations of from site to site in the Er 3+ ligand fields. Such a broadening trend is due to the re-absorption/selfabsorption [50] that occurs in a typical 3-level system when the absorption and emission spectra overlap [14]. ߂ߣ does change significantly in our glass samples, suggesting that the addition of Yb 3+ affects the differences in the Er 3+ ligand field from site to site, and thus lead to increased inhomogeneous broadening of the emission spectra.…”

“…Moreover, the codoping of Yb 3+ ions with Er 3+ ions in different glasses has yielded enhanced luminescence properties of the Er 3+ ions [13]. So, an important need for rigorous investigation of the codoped Er 3+ Yb 3+ ions in various glass matrices exists, with a view to achieving unprecedented results in telecommunication technology [10,14,15].…”