Optical and physical properties of Er3+-doped oxy-fluoride tellurite glasses

Chillcce, E. F.; Mazali, Ítalo Odone; Alves, Oswaldo Luiz; Barbosa, L. C.

doi:10.1016/j.optmat.2010.09.027

Cited by 42 publications

(17 citation statements)

References 29 publications

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“…A similar behavior was reported in varied host materials [11,18]. The band broadening may be the consequence of the Tm 3+ environment change associated with the Tm-F bonds [22] or the TeO 4 →TeO 3 structural change [19].…”

Section: Thermal and Optical Properties Of Fluorotellurite Glassessupporting

confidence: 79%

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

Gebavi¹,

Taccheo²,

Balda³

et al. 2012

Journal of Non-Crystalline Solids

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Section: Thermal and Optical Properties Of Fluorotellurite Glassessupporting

confidence: 79%

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

Gebavi¹,

Taccheo²,

Balda³

et al. 2012

Journal of Non-Crystalline Solids

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“…The 740 cm −1 Raman band was attributed to symmetric stretching of Te O in the TeO 3+1 unit, which resembles the TeO 4 unit except that one axial Te O bond longer, and 670 cm −1 is assigned to the symmetric stretching of Te O bonds in the TeO 4 units. In TeO 2 -ZnF 2 -ZnO-Er 2 O 3 glasses, Chillcce et al [68] observed two Raman bands peaking at approximately 670 cm −1 and 744 cm −1 , indicating the presence of TeO 4 units and TeO 3+1 and/or TeO 3 structural units. The proportion of TeO 3 and TeO 3+1 entities within the former network depends on the chemical nature and the concentration of the modifier [69,70].…”

Section: Discussionmentioning

confidence: 99%

FT-IR and Raman spectroscopic studies of ZnF₂–ZnO–As₂O₃–TeO₂ glasses

Ahmmad

Samee

Taqiullah

et al. 2016

Journal of Taibah University for Science

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Please cite this article in press as: S.K. Ahmmad, et al. FT-IR and Raman spectroscopic studies of ZnF 2 -ZnO-As 2 O 3 -TeO 2 glasses, J. Taibah Univ. Sci. (2015), http://dx. AbstractThe effect of fluorine substitution on the spectral properties of the xZnF 2 -(20-x)ZnO-40As 2 O 3 -40TeO 2 (x = 0, 4, 8, 12, 16 and 20 mol%) glass system was investigated by FTIR and Raman spectroscopies. The results demonstrate that TeO 4 and TeO 3 were among the primary structural units in the investigated glasses in addition to As 2 O 3 pyramids and ZnO 4 structural units. The addition of fluorine results in the reduction of Te O Te linkage due to a gradual transformation of trigonal bipyramidal TeO 4 through TeO 3+1 to trigonal pyramidal TeO 3 , which decreases the connectivity of the tellurite glass former network. The theoretical optical basicity of the studied glasses decreases with increasing ZnF 2 content.

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“…It has to be mentioned, however, that high content of TeO 2 as the glass-forming element considerably decreases spectral transmission (∼75%), and shifts the shortwave boundary towards longer wavelengths, at the same time narrowing the transmission range. What is more, maximum photon energy of 780 cm −1 along with high refractive index n ∼ 2 increase the likelihood of non-linear phenomena [43]. Keeping that in mind, an excellent alternative for tellurite glasses are germanium-based glasses [44].…”

Section: Active Optical Fibres For Application In Laser and Broadbandmentioning

confidence: 99%

Active optical fibres for application in laser and broadband ASE sources

Dorosz¹,

Dorosz²,

Zając³

et al. 2012

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. The article brings into focus the present state of technology employing active fibres doped with rare earth (RE) ions for applications requiring power supply of several dozen watts and broadband ASE sources. Current trends in development of glasses and in construction of active fibres used in fibre sources of radiation within VIS-NIR range are presented. Technological constraints in the doping of fibre core glasses are discussed, with particular consideration of optimal RE concentration for technical applications. Characteristics of glasses are offered, and the glasses are used for manufacturing optical fibres with luminescence within the visible as well as near-and mid-infrared ranges. Also, requirements and luminescence properties concerning glasses co-doped with e.g. Nd 3+ /Yb 3+ ,Tm 3+ /Ho 3+ and Yb 3+ /Tb 3+ are discussed. Results of research on the impact of technological parameters of glass matrices on luminescence properties of core glasses and optical fibres are quoted. For the doped glasses of which luminescence in a wide spectral range is desired, conditions for their processing into optical fibre systems are mentioned. Additionally, the impact of phonon energy in the glass on producing emission in a specified spectral range is analyzed. Furthermore, the article presents directions of technological studies to solve problems persisting in the phase of glass matrix design, as well as in determining the influence of fibre drawing process on the luminescence properties of core glasses and optical fibres, confirming the differences in luminescence stemming from the drawing process. Finally, some original designs of core glasses and active multicore fibre systems devised for construction of fibre radiation sources are presented.

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Optical and physical properties of Er3+-doped oxy-fluoride tellurite glasses

Cited by 42 publications

References 29 publications

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

FT-IR and Raman spectroscopic studies of ZnF₂–ZnO–As₂O₃–TeO₂ glasses

Active optical fibres for application in laser and broadband ASE sources

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Optical and physical properties of Er3+-doped oxy-fluoride tellurite glasses

Cited by 42 publications

References 29 publications

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses

FT-IR and Raman spectroscopic studies of ZnF2–ZnO–As2O3–TeO2 glasses

Active optical fibres for application in laser and broadband ASE sources

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FT-IR and Raman spectroscopic studies of ZnF₂–ZnO–As₂O₃–TeO₂ glasses