Structure, and luminescence properties in Tm3+/Yb3+ co-doped bismuth-tellurite glass for 2 μm fiber lasers

Song, Chunlai; Xu, Pengfei; Zhou, Dechun; Mo, Haoyun; Qi, Kaifa; Zhong, Xinru; Wu, You; Cao, Jilong; Han, Kexuan

doi:10.1016/j.jnoncrysol.2022.121784

Cited by 16 publications

(4 citation statements)

References 34 publications

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“…Barium fluoride incorporated barium tellurite glasses co-doped with Tm 3+ /Ho 3+ ions have been shown to possess better thermal stability and spectral properties. 36 As stated initially, for effectively utilizing the glasses as lasing sources, it is imperative for the host glass to be doped with rare earth ions. The type and nature of these ions will define the wavelength and the emission intensities.…”

Section: Optical Applications Of Bismuth Tellurite Glassesmentioning

confidence: 99%

Review—Recent Advances in Bismuth Tellurite Glasses for Photonic and Radiation Shielding Applications

Blessy Kamalam,

Manikandan

2023

ECS J. Solid State Sci. Technol.

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The inherent properties of heavy metal oxide glasses have led to their widespread applications in various domains including lasers, optical fibers, optoelectronics, and radiation shielding materials. Tellurium oxide and bismuth oxides are conditional glass forming heavy metal oxides which, when combined, suitably yield significant improvement in the whole system. Lower phonon energy of tellurite helps in aiding broader transmission and lasing properties, while the ability of bismuth ions to reside in various valence states aids in incorporation of optically active rare earth ions in these glasses. The near infrared emission characteristic of bismuth ions could be improved by co-doping with rare earth ions to improve the emission and consequently their applications as photonic devices. Higher density of these oxides helps in increasing the radiation shielding ability, thereby making them suitable replacement materials for lead based toxic compounds.

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Section: Optical Applications Of Bismuth Tellurite Glassesmentioning

confidence: 99%

Review—Recent Advances in Bismuth Tellurite Glasses for Photonic and Radiation Shielding Applications

Blessy Kamalam,

Manikandan

2023

ECS J. Solid State Sci. Technol.

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“…It can be noticed that the gain coefficient grad increases with increasing p-value and the maximum gain coefficient of TB3 is 7.37 cm 2826 nm), and the positive gain in the 3 µm band occurs when the p-value is greater 0.2, which reveals that the TB3 laser material can obtain a 2.85 µm laser under a low pu ing threshold. 6 6 3+ The gain coefficient is an essential index to measure the gain property of laser m rial. If the 6 H15/2 and 6 H13/2 energy levels are only considered, the gain coefficient of T estimated by the calculated absorption and emission cross-sections of Dy 3+ [34]:…”

Section: Optical Radiation and Gain Characteristicmentioning

confidence: 99%

“…In recent years, fiber lasers in the mid-infrared band have become a hot topic due to their potential applications in remote sensing monitoring, military, and other fields [1][2][3][4][5][6][7][8][9]. Usually, ~3 µm emission originates from the radiative transition of Ho 3+ : 5 I 6 → 5 I 7 , Er 3+ : 4 I 11/2 → 4 I 13/2 , and Dy 3+ : 6 H 13/2 → 6 H 15/2 [2].…”

Section: Introductionmentioning

confidence: 99%

“…In 2023, Feng et al prepared a series of Er 3+ /Pr 3+ co-doped fluorotellurite glasses and the energy transfer mechanism of Er 3+ and Pr 3+ ions was investigated using the Dexter theory, where the energy transfer microscopic parameters C D-A are 13.21 × 10 −40 cm 6 /s and 0.89 × 10 −40 cm 6 /s for the ET1 and ET2 processes, respectively [18].…”

Section: Introductionmentioning

confidence: 99%

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Broadband 2.85 μm Luminescence Properties of Er3+/Dy3+ Co-Doped Fluorotellurite Glass

Bai,

Zhou,

Cao

et al. 2023

Photonics

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TeO2-BaF2-Er2O3-Dy2O3 laser glasses were prepared using the melt-quenching method. The bound water that can capture the excited state energy was reduced by physical and chemical methods. We did not observe a significant Er3+ emission peak at 2.7 μm in fluorescence spectra, which may be due to the efficient energy transfer process (ET2). Meanwhile, we found a broadband gain span of approximately 400 nm in fluorescence spectra at the 2.85 μm band, attributed to the ‘vector summation’ of the energy level radiation transition and the change of the glass network. Subsequently, we explored the structural properties of the glass. The results indicated that the Gaussian peak located at 250 cm−1 drifts toward 370 cm−1, which may be caused by the fracture or recombination of Te-O-Te and a decrease in the bridge oxygen content with the increasing concentration of Er2O3. The topology cage structure around the luminescence center of rare earth ions is changed and the stability of the optically active center is enhanced, finally contributing to the enhancement of luminescence. Meanwhile, the maximum σemi and gain coefficient of Dy3+ reach up to 7.22 × 10−21 cm2 and 7.37 cm−1, respectively. The comprehensive results show that the fluorotellurite glass designed in this study is expected to be a gain medium for mid-infrared lasers in remote sensing monitoring, military, and other fields.

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Linear Refractive Index of Some Tellurite Glasses

El-Mallawany

2023

The Physics of Advanced Optical Materials: Tellurite Glasses

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Structure, and luminescence properties in Tm3+/Yb3+ co-doped bismuth-tellurite glass for 2 μm fiber lasers

Cited by 16 publications

References 34 publications

Review—Recent Advances in Bismuth Tellurite Glasses for Photonic and Radiation Shielding Applications

Review—Recent Advances in Bismuth Tellurite Glasses for Photonic and Radiation Shielding Applications

Broadband 2.85 μm Luminescence Properties of Er3+/Dy3+ Co-Doped Fluorotellurite Glass

Linear Refractive Index of Some Tellurite Glasses

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