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 25 publications

(8 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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

Self Cite

View full text Add to dashboard Cite

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

show abstract

“…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

Self Cite

View full text Add to dashboard Cite

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

“…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

View full text Add to dashboard Cite

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.

show abstract

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

Cited by 25 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

Contact Info

Product

Resources

About

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

Cited by 25 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

Contact Info

Product

Resources

About

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