Engineering rare-earth ions doped fluorophosphate glass for 1.47μm lasers

Tian, Ying; Jing, Xufeng; Li, Yinyan; Xu, Shiqing

doi:10.1016/j.jnoncrysol.2013.08.026

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…Fluoroaluminophosphate glasses play an important role in this endeavor, and numerous promising RE-doped compositions have been developed, characterized with regard to their local structures and photophysical properties, and functionally tested. − Nevertheless, the local bonding preferences of the emitting rare-earth ions in these glasses are still uncertain. Because some of the transitions of Eu 3+ are particularly sensitive to the ligand environment, detailed spectroscopic studies of Eu-doped glasses have been carried out with systematic compositional variation. − Qualitative insights have also come from phonon sideband intensities , and Mössbauer spectra, whereas the method of electron spin resonance utilizing rare-earth spin probes has been greatly under-utilized in this field .…”

Section: Introductionmentioning

confidence: 99%

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

et al. 2015

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A detailed structural investigation of a series of fluoride phosphate laser glasses with nominal composition 25BaF 2 -25SrF 2 -(30-x)Al(PO 3 ) 3 -xAlF 3 -(20-z)YF 3 :zREF 3 with x = 25, 20, 15 and 10, RE = Yb and Eu and 0 ≤ z ≤ 1.0 has been conducted, using Raman, solidstate nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopies. The network structure is dominated by the preferred formation of aluminum-to-phosphorus linkages, which have been quantified by means of 27 Al/ 31 P NMR double resonance techniques. The fluoride ions are found in mixed Al/Y/Ba/Sr environments accommodating the luminescent dopant species as well. The local environments of the rare-earth species have been studied by pulsed EPR spectroscopy of the Yb 3+ spin probe (S = ½), revealing composition dependent echo-detected lineshapes, and strong hyperfine coupling with 19 F nuclei in hyperfine sublevel correlation (HYSCORE) spectra consistent with the formation of Yb 3+ -F bonds. In addition, photoluminescence spectra of Eu 3+ -doped samples reveal that the 7 F 2 -> 5 D 0 / 7 F 1 -> 5 D 0 transition intensity ratio, the normalized phonon sideband intensities in the excitation spectra as well as excited state lifetimes are systematically dependent on fluoride content.Altogether, these results indicate that the rare-earth ions are found in a mixed fluoride/phosphate environment, to which the fluoride ions make the dominant contribution. Nevertheless, even at the highest fluoride levels (x = 25) the data suggest residual rare-earth-phosphate coordination.

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Section: Introductionmentioning

confidence: 99%

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

et al. 2015

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“…In contrast, no remarkable changes were observed in the IR spectra of Method‐2, despite using the same dehydration agent of Method‐4, which indicates that RAP (CCl 4 ) method cannot remove residual ‐OH groups of FPC glass effectively. From the FTIR spectra, the content of ‐OH group was calculated by using the following equation

false[{OH}^{-} false] = \frac{1000}{d} log (\frac{T_{0}}{T})

where d is the thickness of the samples (mm), T 0 is the transmission at the baseline, T is the transmittance at the maximum absorption band of ‐OH groups, and all the calculation results are summarized in Table .…”

Section: Resultsmentioning

confidence: 99%

Novel Synthesis of Low Hydroxyl Content Yb³⁺‐Doped Fluorophosphate Glasses with Long Fluorescence Lifetimes

Zheng

Wang

et al. 2014

J. Am. Ceram. Soc.

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A novel dehydration method for preparing rare‐earth ions‐doped fluorophosphate glasses was presented using raw materials soaking and rapid heating process, and a series of water‐free Yb3+‐doped fluorophosphate glasses (FPC) were obtained. In contrast with other dehydration methods, we found that the Yb3+‐doped FPC has wide transmission range and long fluorescence lifetime. The hydroxyl groups (‐OH) absorption was barely observed in the range 260–3750 nm, and the UV absorption cut‐off wavelength was blue shifted by 100 nm. Under the optimal conditions, the maximum value of emission cross section and the fluorescence lifetime of FPC reached 0.82 pm2 and 2.67 ms, respectively. These excellent optical properties implied a potential application of the FPC glass in multicomponent glass fibers, IR lasers, and optical amplifiers.

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Effect of introduction of TiO2 and GeO2 oxides on thermal stability and 2 μm luminescence properties of tellurite glasses

Tang

Tian

et al. 2019

Ceramics International

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Engineering rare-earth ions doped fluorophosphate glass for 1.47μm lasers

Cited by 6 publications

References 33 publications

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Novel Synthesis of Low Hydroxyl Content Yb³⁺‐Doped Fluorophosphate Glasses with Long Fluorescence Lifetimes

Effect of introduction of TiO2 and GeO2 oxides on thermal stability and 2 μm luminescence properties of tellurite glasses

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Engineering rare-earth ions doped fluorophosphate glass for 1.47μm lasers

Cited by 6 publications

References 33 publications

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Novel Synthesis of Low Hydroxyl Content Yb3+‐Doped Fluorophosphate Glasses with Long Fluorescence Lifetimes

Effect of introduction of TiO2 and GeO2 oxides on thermal stability and 2 μm luminescence properties of tellurite glasses

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Novel Synthesis of Low Hydroxyl Content Yb³⁺‐Doped Fluorophosphate Glasses with Long Fluorescence Lifetimes

Effect of introduction of TiO2 and GeO2 oxides on thermal stability and 2 μm luminescence properties of tellurite glasses