Spectroscopic and laser properties of Er3+ doped fluoro-phosphate glasses as promising candidates for broadband optical fiber lasers and amplifiers

Babu, S. Surendra; Seshadri, M.; Prasad, V. Reddy; Ratnakaram, Y.C.

doi:10.1016/j.materresbull.2015.06.033

Cited by 34 publications

(7 citation statements)

References 54 publications

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“…These results reflect the reliability of the fit. The Judd-Ofelt parameters of the investigated glasses are similar to the J–O parameters reported for Er 3+ -doped phosphate [31], fluoro-phosphate [32], and fluoride glasses [33]. Ω 2 can be related to the covalency of a RE-ligand, the coordination symmetry of the environment around the Er 3+ ion, and the polarizability of the ligand anions [6].…”

Section: Resultssupporting

confidence: 71%

“…The spectroscopic quality factor χ was found to slightly decrease from 0.78 to 0.65 with the increase of x indicating that the presence of Ag improves the fluorescence dynamics of the laser transition 4 I 13/2 → 4 I 13/2 . One should point out that the spectroscopic quality factors of the investigated glasses are lower than those reported for phosphate glasses [1,32,33] but are included in the range of 0.126–3.372 reported for Er 3+ in various glasses [37].…”

Section: Resultsmentioning

confidence: 99%

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Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

et al. 2019

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Glasses with the system (84.60-x) NaPO3-5 ZnO-(9.40-x) NaF-x Ag2O-1 Er2O3, (x = 0, 2, 4, and 6) (mol%) were synthesized by the conventional melt-quenching method. The impact of the addition of Ag2O on the physical, thermal, structural, and optical properties of the glasses is discussed. The Judd-Oflet analysis was used to evaluate the radiative properties of the emission transitions of the glasses. The enhancement of luminescence properties due to Ag2O is discussed in terms of consequent changes in the local electromagnetic field, symmetry, and the ligand field around the Er3+ ion. The heat treatment of the glass was performed in order to precipitate Ag nanoparticles (NPs), which form as a layer at the surface of the heat-treated glasses as confirmed using scanning electron microscopy (SEM). The Ag NPs were found to increase the intensity of the emission at 1.5 µm.

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Section: Resultssupporting

confidence: 71%

Section: Resultsmentioning

confidence: 99%

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

et al. 2019

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“…Figure 7 presents a plot of bands position and their integral intensity (area under the curve in %) for deconvoluted TP0.25ErF 3 , TP0.75ErF 3 , and TP1.25ErF 3 spectra. The parameters of deconvoluted spectra and bands assignment to the appropriate vibrations are shown in Table 2 and Table 3, respectively [68,69,70,71,72,73,74,75,76,77].…”

Section: Resultsmentioning

confidence: 99%

“…In the FTIR spectra of phosphate glasses, there are bands associated with Q 3 –Q 0 groups (where Q is the number of bridging bonds) [72,73,74,75,76,77]. B and H at ~870 cm −1 relates to the asymmetric stretching vibrations of Q 1 units [72,73].…”

Section: Resultsmentioning

confidence: 99%

“…B and H at ~870 cm −1 relates to the asymmetric stretching vibrations of Q 1 units [72,73]. B and I at ~920 cm −1 is ascribed to the stretching vibrations of P–O–P linked with metaphosphate chain and P–F groups in Q 2 units [74,75]. The bands at ~970, ~1020, ~1077/1094/1102 and ~1135/1158/1178 cm −1 are due to the asymmetric stretching vibration of P–O − bonds in Q 0 units [68], the symmetric stretching vibrations of PO 3 groups in Q 1 units [74], the asymmetric stretching vibrations of PO 2− 3 groups in Q 1 units [76], and the asymmetric stretching vibrations of non-bridging oxygen in Q 2 units [77], respectively.…”

Section: Resultsmentioning

confidence: 99%

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Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

et al. 2019

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The ErF3-doped oxyfluoride phospho-tellurite glasses in the (40-x) TeO2-10P2O5-45 (BaF2-ZnF2) -5Na2O-xErF3 system (where x = 0.25, 0.50, 0.75, 1.00, and 1.25 mol%) have been prepared by the conventional melt-quenching method. The effect of erbium trifluoride addition on thermal, structure, and spectroscopic properties of oxyfluoride phospho-tellurite precursor glass was studied by differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR), and Raman spectroscopy as well as emission measurements, respectively. The DSC curves were used to investigate characteristic temperatures and thermal stability of the precursor glass doped with varying content of ErF3. FTIR and Raman spectra were introduced to characterize the evolution of structure and phonon energy of the glasses. It was found that the addition of ErF3 up to 1.25 mol% into the chemical composition of phospho-tellurite precursor glass enhanced 2.7 µm emission and upconversion. By controlled heat-treatment process of the host glass doped with the highest content of erbium trifluoride (1.25 mol%), transparent erbium-doped phospho-tellurite glass-ceramic (GC) was obtained. X-ray diffraction analysis confirmed the presence of BaF2 nanocrystals with the average 16 nm diameter in a glass matrix. Moreover, MIR, NIR, and UC emissions of the glass-ceramic were discussed in detail and compared to the spectroscopic properties of the glass doped with 1.25 mol% of ErF3 (the base glass).

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Luminescence properties and energy transfer of GdAl3(BO3)4:Ce3+, Tb3+ phosphor

Zhang

Wang

et al. 2016

Ceramics International

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Spectroscopic and laser properties of Er3+ doped fluoro-phosphate glasses as promising candidates for broadband optical fiber lasers and amplifiers

Cited by 34 publications

References 54 publications

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

Impact of Ag2O Content on the Optical and Spectroscopic Properties of Fluoro-Phosphate Glasses

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

Luminescence properties and energy transfer of GdAl3(BO3)4:Ce3+, Tb3+ phosphor

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