Possibilities of laser amplification and measurement of the field structure of ultrashort pulses in the range of 2.7–3 μm in tellurite glass fibres doped with erbium ions

2018 ◽  
Vol 48 (12) ◽  
pp. 1118-1127 ◽  
Author(s):  
E A Anashkina ◽  
V V Dorofeev ◽  
S V Muravyev ◽  
S E Motorin ◽  
A V Andrianov ◽  
...  
2011 ◽  
Vol 106 (12) ◽  
Author(s):  
Cyril Hnatovsky ◽  
Vladlen Shvedov ◽  
Wieslaw Krolikowski ◽  
Andrei Rode

2014 ◽  
Vol 1072 ◽  
pp. 238-241 ◽  
Author(s):  
Zahra Ashur Said Mahraz ◽  
M.R. Sahar ◽  
S.K. Ghoshal
Keyword(s):  
Band Gap ◽  

2021 ◽  
pp. 104843
Author(s):  
E.A. Anashkina ◽  
A.A. Sorokin ◽  
G. Leuchs ◽  
A.V. Andrianov

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 320
Author(s):  
Vitaly V. Dorofeev ◽  
Vasily V. Koltashev ◽  
Sergei E. Motorin ◽  
Alexander D. Plekhovich ◽  
Arkady V. Kim

A series of glass samples of the tungsten–tellurite system TeO2-WO3-Bi2O3-(4-x) La2O3-xEr2O3, x = 0; 0.4; 0.5; 0.7; 1.2; 2; 4 mol%, CEr = 0 - 15 × 1020 cm−3 were synthesized from high-purity oxides in an oxygen flow inside a specialized sealed reactor. In all samples of the series, an extremely low content of hydroxyl groups was achieved (~n × 1016 cm−3, more than 4 orders of magnitude lower than the concentration of erbium ions), which guarantees minimal effects on the luminescence properties of Er3+. The glasses are resistant to crystallization up to 4 mol% Er2O3, and the glass transition temperatures do not depend on the concentration of erbium oxide when introduced by replacing lanthanum oxide. Thin 0.2 mm plates have high transmittance at a level of 20% in the 4.7–5.3 µm range, and the absorption bands of hydroxyl groups at about 2.3, 3, and 4.4 µm, which are typical for ordinary tellurite glass samples, are indistinguishable. The introduction of erbium oxide led to an insignificant change in the refractive index. Er2O3-concentration dependences of the luminescence intensities and lifetimes near the wavelengths of 1.53 and 2.75 μm were found for the 4I13/2–4I15/2 and 4I11/2–4I13/2 /transitions of the Er3+ ion. The data obtained are necessary for the development of mid-infrared photonics; in particular, for the design of Er3+-doped fiber lasers.


2017 ◽  
Vol 268 ◽  
pp. 143-147
Author(s):  
Sib Krishna Ghoshal ◽  
N.N. Yusof ◽  
Ramli Arifin ◽  
Asmahani Awang

Weak stimulated emission cross-section of rare earth ions (REIs) as dopants inside various glass hosts are disadvantageous for practical applications and needs improvement. We determine the mechanism of Titania (TiO2) nanoparticles (TNPs) mediated Surface Plasmon Resonance (SPR) assisted modification in the spectral properties of tellurite glass doped with Erbium (Er3+) ions. Transparent and thermally stable glass samples with varying TNPs contents are synthesized using melt-quenching technique. TEM images revealed the existence of TNPs with average size ranged from 16 to 26 nm. Glass containing 0.4 mol% of TNPs displayed an enhancement in the Raman signal by a factor of 2.25, 1.83, 1.98, 1.56 and 3.58 for the bands centered at 388, 495, 673, 758, and 845 cm-1, which is attributed to the SPR assisted effects. Absorption spectra of TNPs embedded glass (devoid of erbium ions) manifested two surface plasmon (SP) bands at 552 and 580 nm. Up-conversion (UC) PL spectra showed three prominent bands centered at 525, 545, and 660 nm due to the Er3+ ion transition from the excited states to the ground state. Furthermore, glass containing 0.4 mol% of TiNPs exhibited an intensity enhancement by a factor of 30, and 28.57 (green bands) and 19.60 (red band), which are ascribed to the generation of strong local electric field mediated by SPR effect of TNPs situated in the vicinity of Er3+ ion. The presence of TNPs surface plasmon is asserted to be responsible for the alteration of the Er3+ ions absorbance and modification of the UC emission intensity. A correlation between SPR and Surface Enhance Raman Scattering (SERS) is established.


2006 ◽  
Vol 36 (4) ◽  
pp. 343-348 ◽  
Author(s):  
D A Gaponov ◽  
A S Biryukov

2020 ◽  
Vol 22 (23) ◽  
pp. 13118-13122
Author(s):  
Tamires Martinhão Machado ◽  
Rodrigo Ferreira Falci ◽  
Gustavo Fernandes Souza Andrade ◽  
Maria José Valenzuela Bell ◽  
Maurício Antonio Pereira da Silva

Erbium-doped tellurite glass containing copper nanoparticles showed multi-band emission of one particular transition (4I9/2 →4I15/2, at 980 nm) due to electron-lattice coupling.


RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31136-31145 ◽  
Author(s):  
Hssen Fares ◽  
Wissal Stambouli ◽  
Habib Elhouichet ◽  
Bernard Gelloz ◽  
Mokhtar Férid

Tellurite glasses co-activated with erbium ions and silver nanoparticles (Ag NPs) are prepared using melt quenching technique.


2007 ◽  
Vol 1015 ◽  
Author(s):  
Kyung Choi

AbstractHybrid organic/inorganic silicate materials are employed to incorporate rare-earth metal ions for laser amplification applications. Performance of laser amplifiers doped with rare-earth ions significantly relies on glassy hosts. We thus designed and synthesized highly fluorinated glassy hosts doped with biphase of Er3+/CdSe nano-particles. Fluoroalkylene-bridged xerogels containing Er3+-ions show low absorptions at the 1540 nm in this study. The presence of CdSe nano-particles also significantly influences the fluorescence environment of Er3+-ions in the fluorinated glassy matrices.


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