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Proceedings Paper

Enlarging and sintering of the two ends sealed capillaries in capillary stacks for microstructured optical fibers
Author(s): Gennady A. Ivanov; Aleksander A. Makovetskii; Aleksander A. Zamyatin
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Paper Abstract

The problem of enlarging a locally heated a two ends sealed silica capillary is considered. Within the model of a Newtonian fluid for radial flow, an equation is obtained that describes the enlarging kinetics of a molten region of a capillary. The maximal diameter of enlarging is investigated as a function of the geometric parameters of the capillary, the reduced length of the heated region, and its temperature and viscosity. Theoretical results obtained are verified by enlarging isolated silica capillaries in the high-temperature furnace of the fiber-drawing machine. Capillaries are enlarged either in the static regime or when they are fed into the heating zone at a constant speed. These capillaries were used to test various sintering regimes for the capillary stacks for microstructured optical fibers. Samples of microstructured optical fibers, including active fibers, are drawn from these sintered capillary stacks.

Paper Details

Date Published: 29 April 2008
PDF: 11 pages
Proc. SPIE 7006, Lasers for Measurements and Information Transfer 2007, 70060T (29 April 2008); doi: 10.1117/12.802302
Show Author Affiliations
Gennady A. Ivanov, Institute of Radio Engineering and Electronics (Russia)
Aleksander A. Makovetskii, Institute of Radio Engineering and Electronics (Russia)
Aleksander A. Zamyatin, Institute of Radio Engineering and Electronics (Russia)


Published in SPIE Proceedings Vol. 7006:
Lasers for Measurements and Information Transfer 2007

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