Search Results - "Koltashev, V.V."

Tm3+-doped tellurite fiber weak signal amplifier at a wavelength of 2.27 µm by Kamynin, V.A., Filatova, S.A., Denker, B.I., Galagan, B.I., Koltashev, V.V., Medvedkov, O.I., Sverchkov, S.E., Tsvetkov, V.B.

“…•Universal setup for gain measuring in the spectral range over 2.2 μm was proposed.•New double-clad Tm-doped tellurite glass fiber was used as an investigated…”
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On the structure of tungstate–tellurite glasses by Sokolov, V.O., Plotnichenko, V.G., Koltashev, V.V., Dianov, E.M.

“…A continuous network model of xWO3–(1−x)TeO2 glasses is developed, based on quantum-chemical calculation and Raman spectra analysis, in order to relate the…”
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On the structure of molybdate–tellurite glasses by Sokolov, V.O., Plotnichenko, V.G., Koltashev, V.V., Grishin, I.A.

“…A model of continuous network of molybdate–tellurite ( MoO 3 – TeO 2 ) glasses is developed on the basis of quantum-chemical modeling. The model allows one to…”
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Production and properties of high purity TeO2−WO3−(La2O3, Bi2O3) and TeO2−ZnO−Na2O−Bi2O3 glasses by Dorofeev, V.V., Moiseev, A.N., Churbanov, M.F., Kotereva, T.V., Chilyasov, A.V., Kraev, I.A., Pimenov, V.G., Ketkova, L.A., Dianov, E.M., Plotnichenko, V.G., Kosolapov, A.F., Koltashev, V.V.

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On the structure of phosphosilicate glasses by Plotnichenko, V.G., Sokolov, V.O., Koltashev, V.V., Dianov, E.M.

“…Vibrational spectra of phosphosilicate glasses with P 2O 5 concentrations up to 15 mol% are investigated by the methods of Raman spectroscopy and…”
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Room temperature Ce-doped chalcogenide glass laser by Leonov, S.O., Frolov, M.P., Korostelin, Yu.V., Fjodorow, P., Skasyrsky, Ya.K., Sverchkov, S.E., Denker, B.I., Galagan, B.I., Koltashev, V.V., Sukhanov, M.V., Velmuzhov, A.P., Plotnichenko, V.G., Kozlovsky, V.I.

“…In this work, we demonstrate a Ce-doped chalco-genide glass laser pumped by a Fe:ZnSe pulsed laser at room tem-perature. The laser performance of the Ce-doped…”
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Core-clad terbium doped chalcogenide glass fiber with laser action at 5.38 μm by Shiryaev, V.S., Sukhanov, M.V., Velmuzhov, A.P., Karaksina, E.V., Kotereva, T.V., Snopatin, G.E., Denker, B.I., Galagan, B.I., Sverchkov, S.E., Koltashev, V.V., Plotnichenko, V.G.

“…•The core-clad Tb(3+)-doped Ga-Ge-As-Se/Ge-As-S chalcogenide glass fiber is fabricated.•The high-purity 1050 ppmw Tb(3+)-doped core Ga3.2Ge24.9As15.3Se56.6…”
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Method for preparing high-purity REE-doped chalcogenide glasses for bulk and fiber lasers operating at ∼ 5μm region by Sukhanov, M.V., Velmuzhov, A.P., Ketkova, L.A., Otopkova, P.A., Evdokimov, I.I., Kurganova, A.E., Shiryaev, V.S., Denker, B.I., Galagan, B.I., Koltashev, V.V., Plotnichenko, V.G., Sverchkov, S.E.

“…•A method for preparing high-purity REE-doped Ga - Ge - Sb - Se glasses is developed.•Ge, Sb and Se batches are loaded into the silica-glass reactor by…”
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Highly nonlinear tellurite glasses for mid-IR applications by Dorofeev, V.V., Okhrimchuk, A.G., Koltashev, V.V., Smayev, M.P., Motorin, S.E., Balueva, K.V., Plekhovich, A.D.

“…Tellurium dioxide based glasses with a low hydroxyl groups concentration were synthesized in an atmosphere of dried oxygen from initial high purity oxides…”
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Hydrogen diffusion and ortho–para conversion in absorption and Raman spectra of germanosilicate optical fibers hydrogen-loaded at 150–170MPa by Plotnichenko, V.G., Vasiliev, S.A., Rybaltovskii, A.O., Koltashev, V.V., Sokolov, V.O., Klyamkin, S.N., Medvedkov, O.I., Rybaltovskii, A.A., Malosiev, A.R., Dianov, E.M.

“…IR absorption and spontaneous Raman scattering spectra of germanosilicate optical fibers loaded with molecular hydrogen at pressures of 150-170MPa, as well as…”
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150 mW Tb3+ doped chalcogenide glass fiber laser emitting at λ > 5 μm by Koltashev, V.V., Denker, B.I., Galagan, B.I., Snopatin, G.E., Sukhanov, M.V., Sverchkov, S.E., Velmuzhov, A.P., Plotnichenko, V.G.

“…•Five microns chalcogenide glass fiber laser.•Terbium laser with 150 mW output.•Self Q-switching of terbium fiber laser. The paper describes terbium-doped…”
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Application of non-radiative energy transfer from Tb3+ to Nd3+ for pumping a 6 μm solid-state laser by Denker, B.I., Frolov, M.P., Galagan, B.I., Koltashev, V.V., Plotnichenko, V.G., Sukhanov, M.V., Sverchkov, S.E., Velmuzhov, A.P.

“…It has been shown that the sensitization scheme involving non-radiative energy transfer from Tb3+ to Nd3+ in selenide glass is suitable for pumping a…”
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Continuous Tb-doped fiber laser emitting at ∼5.25 µm by Denker, B.I., Galagan, B.I., Koltashev, V.V., Plotnichenko, V.G., Snopatin, G.E., Sukhanov, M.V., Sverchkov, S.E., Velmuzhov, A.P.

“…•Terbium doped chalcogenide glass fiber laser emitting 36 mW CW.•Fiber laser with wavelength exceeding 5 µm.•Multimode fiber lasing at TEM00 mode. The paper…”
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Sensitization of 5–6 μm Nd3+ luminescence in selenide glass by Tb3+ ions by Denker, B.I., Frolov, M.P., Galagan, B.I., Koltashev, V.V., Korostelin, Yu.V., Plotnichenko, V.G., Sukhanov, M.V., Sverchkov, S.E., Velmuzhov, A.P.

“…This investigation proposes Tb3+ ions as efficient sensitizers of 5–6 μm Nd3+ emission in selenide glasses. Tb3+ ions can be pumped by 2.9 μm Er:YAG as well as…”
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Preparation of high purity Sm3+-doped Ga-Ge-As-Se glass and low-loss fiber by Shiryaev, V.S., Sukhanov, M.V., Velmuzhov, A.P., Karaksina, E.V., Kotereva, T.V., Snopatin, G.E., Blagin, R.D., Denker, B.I., Galagan, B.I., Koltashev, V.V., Plotnichenko, V.G., Sverchkov, S.E.

“…The high-purity 700 ppmw Sm3+-doped Ga2.2Ge26.5As14.6Se56.7 glass is prepared and investigated. The glass has an extra-low content of impurities, a wide…”
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Special pure germanium-rich Ga-Ge-As-Se glasses for active mid-IR fiber optics by Shiryaev, V.S., Karaksina, E.V., Churbanov, M.F., Kotereva, T.V., Stepanov, B.S., Ketkova, L.A., Evdokimov, I.I., Koltashev, V.V., Plotnichenko, V.G., Filatov, A.I., Antonov, I.N.

“…[Display omitted] •Special pure GaxGe25As15Se60-x (x = 0; 1; 2; 3; 4; 5) glasses were prepared and investigated.•The glasses have high glass transition…”
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Development of infrared fiber lasers at 1555 nm and at 2800 nm based on Er-doped zinc-tellurite glass fiber by Anashkina, E.A., Andrianov, A.V., Dorofeev, V.V., Kim, A.V., Koltashev, V.V., Leuchs, G., Motorin, S.E., Muravyev, S.V., Plekhovich, А.D.

“…We manufactured and characterized a low-loss gain fiber based on high-purity TeO2–ZnO–La2O3–Na2O undoped glass for 100-μm cladding and TeO2–ZnO–La2O3–Na2O…”
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Preparation of core-clad arsenic rich AsSe glass fiber by Shiryaev, V.S., Churbanov, M.F., Snopatin, G.E., Plotnichenko, V.G., Karaksina, E.V., Kotereva, T.V., Koltashev, V.V., Plekhovich, A.D.

“…Samples of arsenic-rich AsSe glasses with the low content of limiting impurities are prepared; their transmission, Raman spectra and thermal properties are…”
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Preparation and investigation of Pr3+-doped Ge–Sb–Se–In–I glasses as promising material for active mid-infrared optics by Shiryaev, V.S., Karaksina, E.V., Kotereva, T.V., Churbanov, M.F., Velmuzhov, A.P., Sukhanov, M.V., Ketkova, L.A., Zernova, N.S., Plotnichenko, V.G., Koltashev, V.V.

“…For the first time, high purity Ge–Sb–Se–In–I glasses doped with Pr3+ ions are prepared. The host Ge–Sb–Se–In-I glass samples are fabricated using a…”
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Preparation and investigation of Pr 3+ -doped Ge–Sb–Se–In–I glasses as promising material for active mid-infrared optics by Shiryaev, V.S., Karaksina, E.V., Kotereva, T.V., Churbanov, M.F., Velmuzhov, A.P., Sukhanov, M.V., Ketkova, L.A., Zernova, N.S., Plotnichenko, V.G., Koltashev, V.V.

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