Enhanced 2 µm fluorescence and thermal stability in Ho3+/Tm3+ codoped WO3 modified tellurite glasses

Zhou, Yaxun; Wu, Libo; Huang, Bin; Yang, Fengjing; Peng, Shengxi; Qi, Yawei; Yin, Deshun

doi:10.1016/j.matlet.2014.12.077

Cited by 15 publications

(10 citation statements)

References 14 publications

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“…This procedure is standard and well used in literature. [6][7][8][9] The experimental (f exp ) (from the absorption spectra) and calculated (f cal ) (using J-O theory) oscillator strengths for TBZLN-Tm4 and TBZLN-TmHo4 are presented in Table I 21 BiGeZn, 22 and ZnAliBiB 23 glasses, exhibit the parameters follow the trend as Ω 2 >Ω 4 >Ω 6 . It is well known that Ω 2 parameter is more sensitive to local environment and covalency of the metal-ligand bond through the nephelauxetic effect.…”

Section: Resultsmentioning

confidence: 99%

“…Effect of WO 3 as a modifier in Tm 3+ /Ho 3+ -codoped tellurite glasses for 2.0 lm lasers was studied by Zhou et al 7 Balaji et al 8 The density of the samples was measured according to Archimedes principle, where distilled water was used as immersion liquid. Refractive index measurements (0.001 precision) were performed at 632.8 nm wavelength using a prism coupler (Metricon 2010 model, Metricon Corporation, Pennington, NJ).…”

Section: Introductionmentioning

confidence: 99%

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Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

Seshadri

Anjos

Bell

et al. 2016

Int J of Appl Glass Sci

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Tm 3+ singly doped and Tm 3+ /Ho 3+ -codoped TeO 2 -Bi 2 O 3 -ZnO-Li 2 O-Nb 2 O 5 (TBZLN) tellurite glasses were successfully prepared by the melt-quenching technique. Emission characteristics and energy transfer mechanisms were studied upon 785 nm laser diode excitation. A significant enhancement of emission intensity at 1.81 lm with increasing concentration of Tm 3+ ions has been observed while increasing the emission intensity at 2.0 lm with increasing concentration of Ho 3+ has been observed up to the equal concentration of Tm 3+ (0.5 mol%) in TBZLN glasses. The stimulated emission cross section of Tm 3+ : 3 F 4 ? 3 H 6 (5.20 9 10 À21 cm 2 ) and Ho 3+ : 5 I 7 ? 5 I 8 (4.00 9 10 À21 cm 2 ) in 1.0 mol% Tm 3+ -doped and 0.5 mol % Tm 3+ /1.0 mol% Ho 3+ -codoped TBZLN glasses are higher compared to the reported and are found to be excellent candidates for solid-state lasers operating at~1.8 and 2.0 lm, respectively. The extension of NIR emission of Tm 3+ with Ho 3+ ions provides the possibility of using these materials for broadband NIR amplifiers.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

Seshadri

Anjos

Bell

et al. 2016

Int J of Appl Glass Sci

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“…So far, various kinds of glass hosts have been reported for 2 μm emissions including tellurite [12], germanate [13], silicate [14] and fluorophosphate [15] glasses. Among them, fluorophosphate (FP) glass has received increasing interest in many applications involving planner waveguide amplifiers and short wavelength laser sources due to the combination of the merits of fluoride and phosphate glass systems [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…by a traditional melting-quenching method [11][12][13]. All the samples were prepared by using high-purity of Ba(H 2 PO 4 ) 2 (99.9%), BaF 2 (99%), ZnF 2 (95%), MgF 2 (99%), YF 3 (99.9%), KF(99%) and TmF 3 (99.99%) powders.…”

Section: Introductionmentioning

confidence: 99%

Mid-infrared emission properties and energy transfer evaluation in Tm3+ doped fluorophosphate glasses

Tian

et al. 2015

Journal of Luminescence

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“…Due to the cross-relaxation ( 3 H 6 + 3 H 4 → 3 F 4 + 3 F 4 ) process between Tm 3+ ions, the ideal quantum efficiency of Tm 3+ : 3 F 4 can reach 200%1415. To date, in order to get powerful infrared emissions from Tm 3+ ions, various kinds of glass hosts have been investigated including silicate16, tellurite17, germanate18, and fluorophosphates19 glasses. Yin-Wen Lee, etc.…”

mentioning

confidence: 99%

Optical characterization of Tm3+ doped Bi2O3-GeO2-Ga2O3 glasses in absence and presence of BaF2

Han

Zhang

Wang

et al. 2016

Sci Rep

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In this paper, Two new Bi2O3-GeO2-Ga2O3 glasses (one presence of BaF2) doped with 1mol% Tm2O3 were prepared by melt-quenching technique. Differential thermal analysis (DTA), the absorption, Raman, IR spectra and fluorescence spectra were measured. The Judd–Ofelt intensity parameters, emission cross section, absorption cross section, and gain coefficient of Tm3+ ions were comparatively investigated. After the BaF2 introduced, the glass showed a better thermal stability, lower phonon energy and weaker OH− absorption coefficient, meanwhile, a larger ~1.8 μm emission cross section σem (7.56 × 10−21 cm2) and a longer fluorescence lifetime τmea (2.25 ms) corresponding to the Tm3+: 4F3 → 3H6 transition were obtained, which is due to the addition of fluoride in glass could reduce the quenching rate of hydroxyls and raise the cross-relaxation (3H6 + 3H4 → 3F4 + 3F4) rate. Our results suggest that the Tm3+ doped Bi2O3-GeO2-Ga2O3 glass with BaF2 might be potential to the application in efficient ~1.8 μm lasers system.

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Enhanced 2 µm fluorescence and thermal stability in Ho3+/Tm3+ codoped WO3 modified tellurite glasses

Cited by 15 publications

References 14 publications

Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

Doped tellurite glasses: Extending near‐infrared emission for near‐2.0‐μm amplifiers

Mid-infrared emission properties and energy transfer evaluation in Tm3+ doped fluorophosphate glasses

Optical characterization of Tm3+ doped Bi2O3-GeO2-Ga2O3 glasses in absence and presence of BaF2

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