| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1235153 | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy | 2011 | 6 Pages |
Glasses with composition 20CdO·xBi2O3·(79.5 − x)B2O3 (15 ≤ x ≤ 35, x in mol%) containing 0.5 mol% of Er3+ ions were prepared by melt-quench technique (1150 °C in air). The amorphous nature of the glasses was confirmed by X-ray diffraction. The spectroscopic properties of the glasses were investigated using optical absorption spectra and fluorescence spectra. The phenomenological Judd–Ofelt intensity parameters Ωλ (λ = 2, 4, 6) were determined from the spectral intensities of absorption bands in order to calculate the radiative transition probability (AR), radiative life time (τR), branching ratios (βR) for various excited luminescent states. Using the near infrared emission spectra, full width at half maxima (FWHM), stimulated emission cross-section (σe) and figure of merit (FOM) were evaluated and compared with other hosts. Especially, the numerical values of these parameters indicate that the emission transition 4I13/2 → 4I15/2 at 1.506 μm in Er3+-doped cadmium bismuth borate glasses may be useful in optical communication.
Graphical abstractEmission transition 4I13/2 → 4I15/2 at 1.506 μm in Er3+-doped cadmium bismuth borate glasses may be useful in optical communication.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The spectroscopic parameters of erbium doped cadmium bismuth borate glasses are better than other borate glasses and some of the spectroscopic parameters are comparable to the frequently used laser glasses. ► Stimulated emission cross-section and width of the emission line (76 nm) are maximum when the Bi2O3 content is 15 mol% in the investigated composition range. ► Emission transition 4I13/2 → 4I15/2 at 1.506 μm in Er3+-doped cadmium bismuth borate glasses may be highly useful in optical communication.
