Upconversion emission in antimony–germanate double-clad optical fiber co-doped with Yb3+/Tm3+ ions

Kochanowicz, Marcin; Dorosz, Dominik; Żmojda, Jacek; Miluski, Piotr; Dorosz, Jan; Pisarska, Joanna; Pisarski, Wojciech A.

doi:10.1016/j.optmat.2014.10.046

Cited by 16 publications

(6 citation statements)

References 30 publications

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“…Antimony-germanate-silicate (SGS) glasses have been investigated in our earlier works due to good thermal stability, which is required in the optical fiber fabrication process [ 22 , 23 ]. Here, we proposed the modification of SGS glass by small amount of P 2 O 5 from 0.5 mol % to 10 mol %.…”

Section: Methodsmentioning

confidence: 99%

“…Based on our earlier investigations on luminescent properties of antimony-germanate glasses doped with lanthanide ions we confirmed good thermal stability of glassy matrix. We also observed that the combination of two various glass-forming elements is particularly important in reduction of unfavorable non-radiative transitions between energy levels of rare-earth ions [ 21 , 22 , 23 ]. Thus, in case of glass-ceramic fabrication we decided to use P 2 O 5 as a precursor of crystallization in antimony-germanate-silicate glasses doped with Eu 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

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Optical Characterization of Nano- and Microcrystals of EuPO4 Created by One-Step Synthesis of Antimony-Germanate-Silicate Glass Modified by P2O5

et al. 2017

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Abstract:Technology of active glass-ceramics (GC) is an important part of luminescent materials engineering. The classic method to obtain GC is based on annealing of parent glass in proper temperature and different time periods. Generally, only the bulk materials are investigated as a starting host for further applications. However, the effect of an additional heat-treatment process on emission and structural properties during GC processing is omitted. Here, we focus on the possibility of obtaining transparent glass-ceramic doped with europium ions directly with a melt-quenching method. The influence of phosphate concentration (up to 10 mol %) on the inversion symmetry of local environment of Eu 3+ ions in antimony-germanate-silicate (SGS) glass has been investigated. The Stark splitting of luminescence spectra and the local asymmetry ratio estimated by relation of ( 5 D 0 → 7 F 2 )/( 5 D 0 → 7 F 1 ) transitions in fabricated glass confirms higher local symmetry around Eu 3+ ions. Based on XRD and SEM/EDX measurements, the EuPO 4 nano-and microcrystals with monoclinic geometry were determined. Therefore, in our experiment, we confirmed possibility of one-step approach to fabricate crystalline structures (glass-ceramic) in Eu-doped SGS glass without additional annealing process.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical Characterization of Nano- and Microcrystals of EuPO4 Created by One-Step Synthesis of Antimony-Germanate-Silicate Glass Modified by P2O5

et al. 2017

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“…Basic parameters of the manufactured optical fiber were as follows: outer cladding diameter = 340 µm, core diameter equal to 10 µm, NA cladding = 0.58, NA core = 0.2. [23].…”

Section: Icton 2015mentioning

confidence: 99%

“…For a optical fiber length of 2.5 m is determined to be 13.8. Because of 3 F 4 state is spaced from ground level 3 H 6 the red emission ( 1 G 4 → 3 F 4 ) is not reabsorbed due to ground state absorption (GSA) in Tm 3+ levels [23]. To summarize, constructional parameters of the optical fiber: diameter of core, core off-set, core/internal cladding diameter, length of the optical fiber as well as concentration of Yb 3+ and Tm 3+ ions strongly influence on their spectroscopic properties, thus should be optimised for the particular application.…”

Section: Figure 5 Luminescence Spectra Of Optical Fiber (Blue Line) mentioning

confidence: 99%

Rare-earth doped materials for optical waveguides

Dorosz

Kochanowicz

Żmojda

et al. 2015

2015 17th International Conference on Transparent Optical Networks (ICTON)

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In the paper the analysis of luminescence emission in the VIS spectra range of fabricated multicomponent glasses doped with rare-earth ions and PMMA doped with dyes were presented. Up-conversion emission in: germanate glass co-doped with 0.5Yb 2 O 3 /0.75Eu 2 O 3 mol% under 976 nm excitation has been investigated. Down-conversion mechanism was analyzed in phosphate glasses doped with 0.5 mol% Tb 2 O 3 and PMMA codoped with fluorescein and rhodamine B. Phosphosilicate glasses doped with Er 3+ ions have been also studied in order to fabricate target for manufacturing planar waveguides by RF-sputtering deposition. Fabricated materials can be used for fabrication of optical fibers. In result blue up-conversion emission in double-clad optical fiber with Yb 3+ /Tm 3+ -doped core was presented.

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“…As referidas bandas de emissão no azul e no infravermelho são relativas às transições 1 G4 → 3 H6 , 3 H4 → 3 H6 e 1 G4 → 3 H5 dos íons Tm 3+ . Observou-se também bandas de emissão menos intensas em 651 e 696 nm atribuídas às transições 1 G4 → 3 H4 e 3 F2 → 3 H6 para os espectros obtidos para a amostra Ta-S1 e também para a amostra Ta-S2 (GIRI et al, 2010) (MOHANTY; RAI; DWIVEDI, 2012) ) (KOCHANOWICZ et al, 2015.…”

Section: Espectroscopia De Fotoluminescênciaunclassified

Estudo e desenvolvimento de materiais fotoconversores dopados com íons terras raras para aplicações em células solares

Muscelli¹

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Dedico esta tese: Aos meus pais, Santo e Fátima, pela dedicação carinho e amor de sempre. Meus maiores exemplos, com toda a certeza desse mundo, de como seguir em frente trabalhando sem passar encima de ninguém, convivendo com o próximo com respeito e empatia e acima de tudo vivendo em família com amor incondicional. À minha irmã Thaís, minha amiga, conselheira e parceira Ao meu avô Giustino. O cara! iii Agradeço: Ao pessoal do laboratório que tive a oportunidade de conviver durante esses anos de doutoramento. Em especial, Rafael, Felipe, Silvânia e Fábio, pelas risadas, trocas de conhecimento e pelos sufocos compartilhados. E também aos mais novos, Mateus, Lucas, Fernanda, Luiz e Denis. E a Karmel. À profa. Rogéria, por ter primeiramente me aceitado como seu aluno, pela orientação, e pelo vasto conhecimento de química/materiais/espectroscopia concedidos. Pelos bons momentos de convivência. Buscar sempre o seu melhor, nas condições em que se está inserido e o mais importante, dedicação no que se propõe a trabalhar. Esse foi o lema aprendido! Ao laboratório de Materiais Fotônicos do Instituto de química da Unesp de Araraquara e a o prof. Sidney José Lima Ribeiro, pela disponibilização dos equipamentos e por toda ajuda. Ao professor Oswaldo Serra pela disponibilização dos equipamentos. Ao Paulo César (PC) pelo acompanhamento e dicas nas análises. Ao grupo de pesquisa Sol-Gel da Universidade de Franca, e aos professores Dr. Eduardo José Nassar e Dr. Lucas Alonso Rocha, por ter disponibilizado os equipamentos para inúmeras medidas. Aos professores que participaram do exame de qualificação Dra. Andreia Simone Stucchi e prof. Dr. José Maurício Almeida Caiut. Por todos os conselhos, dicas e correções, que me ajudaram muito. Ao grupo de pesquisa CNR-IFN-CSMFO pelo conhecimento aprendido e bons momentos de convivência. Em especial, agradeço a Maurizio Ferrari pela ajuda e suporte. Alessandro Chiasera, Andrea Chiapini e Chistina Armeline e Giorgio Speranza também pelo conhecimento e ajuda. À Lídia Zur, Serelamulu, Ana Piotrowska, Iustyna Vasilchenko, Martina, Lam Tran pelos bons momentos de convivência no laboratório. Aos brasileiros que conheci em Trento. Elvelin, Pablo, José Guilherme, Jaqueline, Priscila, Tiago, Michael, Milene e outros que tive o prazer de compartilhar momentos agradáveis.. iv RESUMO MUSCELLI, W. C. Estudo e desenvolvimento de materiais fotoconversores dopados com íons terras raras para aplicações em células solares, 2017. 233f. Tese (Doutorado em

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Upconversion emission in antimony–germanate double-clad optical fiber co-doped with Yb3+/Tm3+ ions

Cited by 16 publications

References 30 publications

Optical Characterization of Nano- and Microcrystals of EuPO4 Created by One-Step Synthesis of Antimony-Germanate-Silicate Glass Modified by P2O5

Optical Characterization of Nano- and Microcrystals of EuPO4 Created by One-Step Synthesis of Antimony-Germanate-Silicate Glass Modified by P2O5

Rare-earth doped materials for optical waveguides

Estudo e desenvolvimento de materiais fotoconversores dopados com íons terras raras para aplicações em células solares

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