Zobrazeno 1 - 10
of 57
pro vyhledávání: '"V B Neustruev"'
Autor:
V B Neustruev
Publikováno v:
Quantum Electronics. 31:1003-1006
An electrostriction model is proposed for the photorefractive effect observed during the writing of Bragg gratings in germanosilicate fibres. Electrostriction is caused by a spatial charge grating formed upon the exposure to UV radiation. According t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3d5219dec316509d48c522b5ff48135
https://doi.org/10.1070/qe2001v031n11abeh002092
https://doi.org/10.1070/qe2001v031n11abeh002092
Autor:
N. N. Vechkanov, S V Lavrishchev, Vladimir F. Khopin, V B Neustruev, Valery M. Mashinsky, E. M. Dianov, O.D. Sazhin, A N Gur'yanov
Publikováno v:
Optical Fiber Technology. 3:77-86
The problem of excess loss in single-mode germanosilicate optical fibers with GeO 2 content 20 to 35 mol% is experimentally studied. Excess loss in such fibers is due to the drawing-induced defects, UV absorption tail and scattering. It is sensitive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ca1dbbef9d5c3cec12d4e39c78060bf
https://doi.org/10.1006/ofte.1997.0200
https://doi.org/10.1006/ofte.1997.0200
Autor:
Igor' A Bufetov, V B Neustruev, Oleg I. Medvedkov, A N Gur'yanov, Vladimir F. Khopin, Mikhail Melkumov, Valery M. Mashinsky, Evgenii M Dianov, Mikhail V. Yashkov, Aleksei V Shubin
Publikováno v:
Quantum Electronics. 34:695-697
Single-mode Raman fibre lasers emitting a few hundreds of millwatts at wavelengths of 2.0 and 2.2 μm are built for the first time. Laser emission was amplified in a fibre with a germanium dioxide core and a silica cladding pumped by an Er/Yb-doped f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c82359cc553c60474bf7f227b68fa63
https://doi.org/10.1070/qe2004v034n08abeh002747
https://doi.org/10.1070/qe2004v034n08abeh002747
Publikováno v:
Journal of Non-Crystalline Solids. 179:243-253
The origins of optical absorption induced in germanosilicate-core optical fiber by exposure to visible, ultraviolet and γ-radiation have been investigated. The effects of exposure to 5.0 eV photons and γ quanta were found to be identical and strong
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9ad9d12add4eae3d1e14783d5be9214
https://doi.org/10.1016/0022-3093(94)90702-1
https://doi.org/10.1016/0022-3093(94)90702-1
Autor:
V B Neustruev
Publikováno v:
Journal of Physics: Condensed Matter. 6:6901-6936
This review presents the state of the art of the study of germanium-related colour centres in silica glass and silica-based fibres. Most attention is concentrated on the dominant colour centres such as the Ge-related oxygen-deficient centres and para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bde5db26e5f325adf369deca8416ce60
https://doi.org/10.1088/0953-8984/6/35/003
https://doi.org/10.1088/0953-8984/6/35/003
Autor:
A Yu Laptev, A N Gur'yanov, Vladislav Dvoyrin, A. A. Umnikov, Nikolai S Vorob'ev, Mikhail V. Yashkov, Valery M. Mashinsky, V B Neustruev, Evgenii M Dianov
Publikováno v:
Quantum Electronics. 31:996-998
The absorption and luminescence spectra of silica fibres doped with chromium and various dopants are studied. Fibres doped with aluminium and gallium exhibit a broad (300 nm) luminescence band of Cr4+ ions at 1100 nm at room temperature. The quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6102afd19d88f2c01f5a39f1886f581
https://doi.org/10.1070/qe2001v031n11abeh002090
https://doi.org/10.1070/qe2001v031n11abeh002090
Autor:
V. A. Tikhomirov, Valery M. Mashinsky, A N Gur'yanov, E. M. Dianov, S. I. Miroshnichenko, V B Neustruev, D. D. Gusovsky, E. V. Anoikin, Yu. B. Zverev
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 65:392-396
Defect centres induced by UV laser excitation in the germanosilicate core of optical fibre preforms both with and without Ce addition were studied by the optical absorption spectroscopy and ESR. Selective ionization of Ce3+ ions showed the paramagnet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30756dfaf59e1ffeb4eb59f248328775
https://doi.org/10.1016/0168-583x(92)95073-z
https://doi.org/10.1016/0168-583x(92)95073-z
Autor:
Vladimir F. Khopin, M. Yu. Salgansky, Valery M. Mashinsky, V B Neustruev, A N Gur'yanov, I. A. Bufetov, Vladislav Dvoyrin, Oleg I. Medvedkov, Sergei A. Vasiliev, Evgeny M. Dianov, A. V. Shubin
Publikováno v:
Optics letters. 29(22)
Germania-glass-core silica-glass-cladding single-mode fibers (deltan as great as 0.143) with a minimum loss of 20 dB/km at 1.85 microm were fabricated by modified chemical-vapor deposition. The fibers exhibit strong photorefractivity, with type IIa i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6509a0cbeb06259f03f83f75f86ba318
https://pubmed.ncbi.nlm.nih.gov/15552656
https://pubmed.ncbi.nlm.nih.gov/15552656
Autor:
A N Gur'yanov, V B Neustruev, Alexander Rakitin, A. V. Shubin, Oleg I. Medvedkov, Valery M. Mashinsky, Eugeny M. Dianov, Mikhail Yu. Salgansky, Vladimir F. Khopin, Igor' A Bufetov
Publikováno v:
Optical Amplifiers and Their Applications/Integrated Photonics Research.
Raman amplification in singlemode fiber with germania-based core and silica cladding was investigated for the first time. Very short efficient Raman lasers based on this fiber were developed in 1.1 and 1.6 mkm spectral bands.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30cf87284ac3b19c0f2c7b1d669958a4
https://doi.org/10.1364/oaa.2004.owc4
https://doi.org/10.1364/oaa.2004.owc4
Autor:
A. A. Umnikov, V B Neustruev, E. M. Dianov, Valery M. Mashinsky, A N Gur'yanov, Vladislav Dvoyrin
Publikováno v:
Optical Amplifiers and Their Applications.
Absorption and luminescence spectra and luminescence lifetime of optical fibers with silica-based core doped with chromium are studied. For the first time, the broadband luminescence of Cr4+ and Cr3+ ions was observed at room temperature with the qua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01c536d077538c63aec6d8e283d0c427
https://doi.org/10.1364/oaa.2002.otuc4
https://doi.org/10.1364/oaa.2002.otuc4