Dyadenko M.V.

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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 2013
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Fiber-optical elements
Focon
Fiber-optical bundles
Fiber-optical plates
Twister
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APPLICATION OF OPTICAL FIBER
The ring fiber lamp
Clarifying agent with a optical guide
Glasses of night vision
Medical magnifier binocular with the fiber gaffer
Collector
Fiber-optical bundle for transfer of the image
The converter of a light signal
Fiber-optical bundle for transfer of light
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Structure of optical fiber
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Temperature dependence of viscosity
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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 1030 mm 4 pressing of glass
products 5 annealing of glass products
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Properties of twister
Property of twister Twister Twister
Property of twister developed industrial
Aperture of product 1,03 1,05
Difference on size ?CLE between glass for light-guiding core and reflective coats, ?-1 1510-7 2210-7
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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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Influence of coordination of glass for optical
fiber according to rheological characteristics on
thickness of protective coat
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
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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 6001000 ?? 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 ?D 42,97 33,17
6 Factor of easing, mm-1 0,0045 0,0055
7 ?CLE10-7, ?-1 77,8 77,0
8 Density, kg/m3 10-3 4,18 4,20
9 Temperature of synthesis, ?? 1220 1280
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Devices for measurement of glass viscosity in a
range of 100-1014 P?s
Model RSV-1600 (USA)
Model BBV-1000 (USA)
Model PPV-1000 (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
dyadenko-mihail_at_mail.ru keramika_at_bstu.unibel.by