dyadenko m.v . scientific researcher, candidate of technical sciences
DESCRIPTION
Educational institution «Belarusian State Technological University». Glass for an optical fiber. Dyadenko M.V . scientific researcher, candidate of technical sciences ( department of glass and ceramic technology ). New Delhi 201 3. 2. Fiber-optical elements. Fiber-optical bundles. - PowerPoint PPT PresentationTRANSCRIPT
Dyadenko M.VDyadenko M.V.. scientific researcher, candidate of technical sciences (department of glass and ceramic technology)
New Delhi 2013
Glass for an optical fiber
Educational institution «Belarusian State Technological University»
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Twister Fiber-optical plates
FoconFiber-optical bundles
Fiber-optical elements
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Glasses of night vision
APPLICATION OF OPTICAL FIBER
CollectorFiber-optical bundle for transfer of the image
Medical magnifier binocular with the fiber gaffer
Clarifying agent with a optical guide
The converter of a light signalFiber-optical bundle for transfer of light
The ring fiber lamp
4Structure of optical fiber
Temperature dependence of viscosity
Area of:1 – processes of single core lightguide drawing that is thinner than 1 mm;2 – redrawing of a batch of single core lightguide in order to get multicore optical fibers;3 – processes of single core and multicore lightguide drawing with a diameter of 10–30 mm; 4 – pressing of glass products;5 – annealing of glass products
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Properties of twister
2D2
2D1 nnÀ
Property of twisterTwister
developed industrial
Aperture of product 1,03 1,05
Difference on size ТCLE between glass for light-guiding core and reflective coats, К-1
15∙10-7 22∙10-7
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The comparative characteristic of temperature dependence of viscosity of industrial (a) and developed (b) compositions of glass for
optical fiber drawing
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Thickness of protective coat, when viscosity of glass for protective coat is lower than viscosity of
glass for lightguiding core
Thickness of protective coat, when viscosity of glass for protective coat is higher than viscosity of glass for
lightguiding core
Influence of coordination of glass for optical fiber according to rheological characteristics on thickness of
protective coat
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The comparative characteristic of the basic properties of industrial and developed glass for light-guiding core
The basic characteristics of glass for light-guiding core
Developed glass Industrial glass
1 Crystallization stability within temperature interval 600–1000 оС
Absence crystallization
Crystal phase LaTiO3,
Ba2LaZrO5,5 and
La(B0,95SiO4,93)
2 Transmission light, % 86 82
3 Refractive index nD 1,8050 1,8206
4 Medium dispersion 0,01926 0,02474
5 Coefficient of dispersion νD 42,97 33,17
6 Factor of easing, mm-1 0,0045 0,0055
7 ТCLE∙10-7, К-1 77,8 77,0
8 Density, kg/m3 ∙10-3 4,18 4,20
9 Temperature of synthesis, оС 1220 1280
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Devices for measurement of glass viscosity in a range of 100-1014 Pа∙s
Model BBV-1000 (USA)
Model PPV-1000 (USA)
Model RSV-1600
(USA)
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CONTACT:220006, Republic of Belarus, Minsk, Sverdlov str., 13a; department of glass and ceramics technology;phone no. (+375 17) 327-43-08, (+375 29) 501-47-63;E-mail: [email protected]; [email protected]