Preparation of Ho3+/Tm3+ Co-doped Lanthanum Tungsten Germanium Tellurite Glass Fiber and Its Laser Performance for 2.0 μm

Zhou, Dechun; Bai, Xuemei; Zhou, Hang

doi:10.1038/srep44747

Cited by 26 publications

(8 citation statements)

References 38 publications

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“…Comparing the data reported in this paper with similar laser fibers, the slope efficiency is higher than that reported in Ref. but lower than 45.5% which is reported in Ref. at 2050 nm.…”

Section: Resultssupporting

confidence: 50%

Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser

Zhou

Jin

et al. 2019

J Am Ceram Soc

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A novel double-cladding Ho 3+ /Tm 3+ co-doped Bi 2 O 3 -GeO 2 -Ga 2 O 3 -BaF 2 glass fiber, which can be applied to a 2.0-μm infrared laser, was fabricated by a rod-tube drawing method. The thermal properties of the glass were studied by differential scanning calorimetry. It showed good thermal stability and matching thermal expansion coefficient for fiber drawing when T x −T g > 193°C and the maximum difference of the thermal expansion coefficient is 3.55 × 10 −6 /°C or less. The 2.0-μm luminescence characteristics were studied using the central wavelength of 808 nm pump light excitation. The results show that when the concentration ratio of Ho 3+ /Tm 3+ reaches 0.5 mol%:1.0 mol%, the maximum fluorescence intensity was obtained in the core glass, the emission cross section reached 10.09 × 10 −21 cm 2 , and the maximum phonon energy was 751 cm −1 . In this paper, a continuous laser output with a maximum power of 0.986 W and a wavelength of 2030 nm was obtained using an erbium-doped fiber laser as a pump source in a 0.5 m long Ho 3+ /Tm 3+ co-doped glass fiber. In short, the results show that Ho 3+ /Tm 3+ co-doped 36Bi 2 O 3 -30GeO 2 -15Ga 2 O 3 -10BaF 2 -9Na 2 O glass fiber has excellent laser properties, and it is an ideal

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“…Comparing the data reported in this paper with similar laser fibers, the slope efficiency is higher than that reported in Ref. but lower than 45.5% which is reported in Ref. at 2050 nm.…”

Section: Resultssupporting

confidence: 50%

Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser

Zhou

Jin

et al. 2019

J Am Ceram Soc

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“…To date, most of the effort has been spent on Nd 3+ -and Er 3+ -doped tellurite glass systems [11][12][13][14][15][16] and there are relatively fewer studies conducted on the Tm 3+ -doped tellurite glasses [17][18][19][20][21][22][23][24][25]. Recently, lasing and mode-locked operation from bulk thulium-doped tellurite glasses were reported [20,[26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Comparative Spectroscopic Investigation of Tm3+:Tellurite Glasses for 2-μm Lasing Applications

et al. 2018

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Abstract:We performed a comparative spectroscopic analysis on three novel Tm 3+ :tellurite-based glasses with the following compositions Tm 2 O 3 :TeO 2 -ZnO (TeZnTm), Tm 2 O 3 :TeO 2 -Nb 2 O 5 (TeNbTm), and Tm 3+ :TeO 2 -K 2 O-Nb 2 O 5 (TeNbKTm), primarily for 2-µm laser applications. Tellurite glasses were prepared at different doping concentrations in order to investigate the effect of Tm 3+ ion concentration as well as host composition on the stimulated emission cross sections and the luminescence quantum efficiencies. By performing Judd-Ofelt analysis, we determined the average radiative lifetimes of the 3 H 4 level to be 2.55 ± 0.07 ms, 2.76 ± 0.03 ms and 2.57 ± 0.20 ms for the TeZnTm, TeNbTm and TeNbKTm samples, respectively. We clearly observed the effect of the cross-relaxation, which becomes significant at higher Tm 2 O 3 concentrations, leading to the quenching of 1460-nm emission and enhancement of 1860-nm emission. Furthermore, with increasing Tm 2 O 3 concentrations, we observed a decrease in the fluorescence lifetimes as a result of the onset of non-radiative decay. For the 3 H 4 level, the highest obtained quantum efficiency was 32% for the samples with the lowest Tm 2 O 3 ion concentration. For the 1860-nm emission band, the average emission cross section was determined to measure around 6.33 ± 0.34 × 10 −21 cm 2 , revealing the potential of thulium-doped tellurite gain media for 2-µm laser applications in bulk and fiber configurations.

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“…Laser generation at 2.3 μm in a bulk Tm-doped tellurite glass sample was recently demonstrated by Denker et al 20,21 . It was the first experimental confirmation that a tellurite glass matrix is suitable for lasing at the 3 H 4 → 3 H 5 transition whereas laser generation near 2 μm at the 3 F 4 → 3 H 6 transition was previously obtained for different tellurite gain elements such as bulk samples 22 , microspheres 23,24 , and fibers: solid step-index 22,25–27 and microstructured ones 28 .…”

Section: Introductionmentioning

confidence: 94%

Dual-band Tm3+-doped tellurite fiber amplifier and laser at 1.9 μm and 2.3 μm

Muravyev

Anashkina

Андрианов

et al. 2018

Sci Rep

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Ultrabroadband amplification and two-color CW lasing simultaneously near 1.9 μm and 2.3 μm in a Tm3+-doped tellurite fiber were demonstrated experimentally, for the first time to the best of our knowledge. A low-loss Tm3+-doped core fiber from TeO2–ZnO–La2O3–Na2O glasses stable against crystallization was produced by a special technique, providing a low concentration of hydroxyl groups. Supercontinuum from a highly GeO2 doped silica fiber pumped by an Er fiber laser system was used as a seed for an amplifier. A maximum gain of 30 dB and 7 dB was measured at 1.9 μm and 2.3 μm, respectively. We report detailed experimental and theoretical studies, which are in a very good agreement, of laser amplification and generation in the manufactured fiber with carefully measured and calculated parameters. A quantitatively verified numerical model was used to predict power scalability at 2.3 μm in schemes with optimized parameters at increased pump power. The presented results show that a high-quality tellurite fiber is a promising candidate for developing lasers in the 2.3 μm atmospheric window which are particularly relevant for applications in gas sensing, eye-safe laser radars, breath analysis, remote sensing and stand-off trace gas detection.

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Preparation of Ho3+/Tm3+ Co-doped Lanthanum Tungsten Germanium Tellurite Glass Fiber and Its Laser Performance for 2.0 μm

Cited by 26 publications

References 38 publications

Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser

Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser

Comparative Spectroscopic Investigation of Tm3+:Tellurite Glasses for 2-μm Lasing Applications

Dual-band Tm3+-doped tellurite fiber amplifier and laser at 1.9 μm and 2.3 μm

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Preparation of Ho3+/Tm3+ Co-doped Lanthanum Tungsten Germanium Tellurite Glass Fiber and Its Laser Performance for 2.0 μm

Cited by 26 publications

References 38 publications

Fabrication of double‐cladding Ho3+/Tm3+ co‐doped Bi2O3–GeO2–Ga2O3–BaF2 glass fiber and its performance in a 2.0‐μm laser

Fabrication of double‐cladding Ho3+/Tm3+ co‐doped Bi2O3–GeO2–Ga2O3–BaF2 glass fiber and its performance in a 2.0‐μm laser

Comparative Spectroscopic Investigation of Tm3+:Tellurite Glasses for 2-μm Lasing Applications

Dual-band Tm3+-doped tellurite fiber amplifier and laser at 1.9 μm and 2.3 μm

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Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser

Fabrication of double‐cladding Ho³⁺/Tm³⁺ co‐doped Bi₂O₃–GeO₂–Ga₂O₃–BaF₂ glass fiber and its performance in a 2.0‐μm laser