Improvement of ultra-broadband near-infrared emission in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses

Hou, Guangning; Cao, Lijie; Zhang, Chaomin; Yu, Xiaoran; Fu, Wenbin; Li, Guishun; Xia, Jinan; Ping, Yunxia

doi:10.1016/j.optmat.2020.110547

Cited by 8 publications

(5 citation statements)

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“…The most satisfactory results concerning broad NIR emission emerge upon excitation at 808 nm, with FWHM value of 173 (±5 nm), which has been observed for the Er 3+ /Tm 3+ /Nd 3+ doped SiO 2 -Ta 2 O 5 nanocomposite. The FWHM values obtained in the present work are lower than ones obtained for some RE-doped tellurite glass ( Rivera et al, 2014 ; Hou et al, 2021 ). However, they are similar to others presented in the literature ( Han et al, 2014 ; Shen et al, 2020a ).…”

Section: Resultscontrasting

confidence: 85%

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

et al. 2022

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This paper reports on the preparation of Er3+/Yb3+/Tm3+, Er3+/Yb3+/Nd3+, and Er3+/Tm3+/Nd3+ triply doped and Er3+-doped SiO2-Ta2O5 glass ceramic nanocomposites and active planar waveguides by the sol–gel process using the dip-coating technique as deposition method. The investigation of their structural, morphological, and luminescent properties using XRD, AFM, and photoluminescence analysis, are reported here. The XRD results showed the presence of L-Ta2O5 nanocrystals dispersed in the SiO2-based amorphous host for all the nanocomposites and films. The rare earth ion (RE3+) doping concentration affected both the crystallinity, and the crystallite sizes of the Ta2O5 dispersed into SiO2-Ta2O5 nanocomposites and waveguides. AFM characterization revealed crack free and smooth surface roughness and differences in viscoelasticity on the Er3+-doped SiO2-Ta2O5 films surface, which allows the identification of Ta2O5 nanocrystals on the SiO2 amorphous host. The Er3+ doped and triply doped SiO2-Ta2O5 nanocomposites displayed broad- and super broadband NIR emissions with a FWHM up to 173 nm achieved in the telecom wavelengths. The lifetime of the 4I13/2 emitting level of the Er3+-doped SiO2-Ta2O5 waveguides is strongly dependent on Er3+ concentration and an emission quenching was negligible up to 0.81 mol%. The structural and luminescent investigations indicated that RE3+-doped SiO2-Ta2O5 glass ceramics are promising candidates for photonic applications in optical devices operating in wide wavelengths at the telecom bands.

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Section: Resultscontrasting

confidence: 85%

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

et al. 2022

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“…3 that the Tg value of the tellurite glass matrix doped with Ho3+-Er3+-Yb3 + is greater than that of fluoride glass, phosphate glass, and bismuth glass, indicating that the doped glass system has better crystallization resistance 23 – 25 The ΔT value of the Ho3+-Er3+-Yb3+ triple-doped tellurite glass is about 141.9°C, which meets the requirements of device fabrication 26 …”

Section: Resultsmentioning

confidence: 71%

“…[23][24][25] The ΔT value of the Ho 3þ -Er 3þ -Yb 3þ triple-doped tellurite glass is about 141.9°C, which meets the requirements of device fabrication. 26…”

Section: Thermal Analysismentioning

confidence: 99%

Investigation of intense mid-infrared emission in Ho3+/Yb3+/Er3+ triple-doped tellurite glass

Zhang

Lai

2022

Opt. Eng.

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Rare earth ion doping is considered to be a feasible way to improve the optical properties of glass in recent years. We investigate the luminescence characteristics of Ho 3þ -Er 3þ -Yb 3þ triple-doped tellurite glass (TeO 2 -ZnO-WO 3 -La 2 O 3 ) at 2.0 μm. A series of characterization analyses on the prepared samples, such as x-ray diffractometer (XRD) pattern, Raman spectrum, differential scanning calorimetry (DSC) curve analyses, absorption spectrum, emission spectrum, and fluorescence decay curve, were performed. XRD pattern and DSC curve analyses indicate that the glass sample exhibits a typical amorphous structure with excellent thermodynamic stability. Through the absorption spectrum, the position and intensity of the absorption peak of the glass sample can be detected. Under an excitation of 980 nm laser, the 2.0-μm emission peak intensity of the glass sample increases by about 1500%, which is attributed to the energy level transition among Ho 3þ , Er 3þ , and Yb 3þ . By analyzing the energy level transition of Ho 3þ , Yb 3þ , and Er 3þ ions, the energy transfer mechanism and fluorescence lifetime can be obtained, and then the fluorescence enhancement phenomenon of Ho 3þ -Er 3þ -Yb 3þ triple-doped tellurite glass at 2.0 μm can be explained. It is demonstrated that the as-prepared Ho 3þ -Er 3þ -Yb 3þ triple-doped tellurite glass has potential for the application of fiber lasers and fiber amplifiers.

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“…The choice of the host material is an essential factor that needs to be considered when developing new optical glass materials. For that reason, the spectroscopic studies mainly focus on low phonon energy systems such as tellurite, 16,17 fluoroindate, 18 zinc fluoride, 19 and germanate 20,21 glasses. Glass systems with low phonon energy are more suitable as host materials for the RE 3+ because of the less probable non-radiative relaxation process.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

et al. 2023

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Near‐infrared luminescence of Pr3+ and Tm3+ ions in titanate‐geramanate glasses have been studied for laser and fiber amplifier applications. The effect of the molar ratio GeO2:TiO2 (from 5:1 to 1:5) on spectroscopic properties of glass systems was studied by absorption, luminescence measurements, and theoretical calculations using the Judd‐Ofelt theory. It was found that independently of the TiO2 concentration, intense near‐infrared emissions at 1.5 μm and 1.8 μm were observed for glasses doped with Pr3+ and Tm3+ ions, respectively. Moreover, several spectroscopic and near‐infrared (NIR) laser parameters for Pr3+ and Tm3+ ions, such as emission bandwidth, stimulated emission cross‐section, quantum efficiency, gain bandwidth, and figure of merit, were determined. The results were discussed in detail and compared to the different laser glasses. Systematic investigations indicate that Pr3+‐doped system with GeO2:TiO2 = 2:1 and Tm3+‐doped glass with GeO2:TiO2 = 1:2 present profit laser parameters and could be successfully applied to near‐infrared laser and broadband optical amplifiers.This article is protected by copyright. All rights reserved

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Improvement of ultra-broadband near-infrared emission in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses

Cited by 8 publications

References 41 publications

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

Investigation of intense mid-infrared emission in Ho3+/Yb3+/Er3+ triple-doped tellurite glass

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions

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Improvement of ultra-broadband near-infrared emission in Nd3+-Er3+-Pr3+ tri-doped tellurite glasses

Cited by 8 publications

References 41 publications

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

Super Broadband at Telecom Wavelengths From RE3+-Doped SiO2-Ta2O5 Glass Ceramics Planar Waveguides

Investigation of intense mid-infrared emission in Ho3+/Yb3+/Er3+ triple-doped tellurite glass

Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr3+ and Tm3+ ions

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Experimental and theoretical studies on NIR luminescence of titanate‐germanate glasses doped with Pr³⁺ and Tm³⁺ ions