Broadband 2μm fluorescence and energy transfer evaluation in Ho3+/Er3+ codoped germanosilicate glass

Wei, Tao; Tian, Cong; Cai, Muzhi; Jing, Xufeng; Zhang, Junjie; Xu, Shiqing

doi:10.1016/j.jqsrt.2015.03.035

Cited by 23 publications

(1 citation statement)

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“…Moreover, the addition of GeO 2 in silicate host can enhance the refractive index of the glass host and which is beneficial for improving the 2.0 µm emission cross section [18,19]. Therefore, germanosilicate glass which combines the merits of germanate and silicate glasses can be a suitable optical material for mid-infrared fiber lasers [20].…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Structural and fluorescence properties of Ho3+/Yb3+ doped germanosilicate glasses tailored by Lu2O3

Cao

Huang

et al. 2018

Journal of Alloys and Compounds

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Structural and fluorescence properties of Ho 3+ /Yb 3+ co-doped germanosilicate glasses have been modified by tailoring the composition using lanthanide additive Lu 2 O 3. Raman spectra and X-ray Photoelectron spectra reveal that the addition of Lu 2 O 3 can change the structure by increasing non-bridging oxygens (NBO) in this glasses. Meanwhile, an improved thermal stability (∆T: from 110 to 187 ˚C) has also been obtained via Lu 3+ 'lanthanide contraction'. Futhermore, the positive effect of changed glass structure gives excellent fluorescence properties by the decreasing cross relaxation process which are proved by the experimental upconversion, near-infrared and mid-infrared fluorescence spectra. Additionally, a double enhancement of a 2.0 µm emission has been achieved successfully in this silica-germanate glass with 7 mol% Lu 3+ addition, which possesses a larger emission cross section (4.41 × 10 −21 cm 2) at 2022 nm. These results indicate that the optimized emission of Ho 3+ for optical fiber laser can be achieved by tuning the glass structure using lanthanide additive Lu 2 O 3 .

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Section: Accepted Manuscriptmentioning

confidence: 99%