A silica optical fiber with an expanding conical end

Aleksander A. Makovetskii; Aleksander A. Zamyatin

doi:10.1117/12.725619

23 January 2007 A silica optical fiber with an expanding conical end

Aleksander A. Makovetskii, Aleksander A. Zamyatin

Proceedings Volume 6594, Lasers for Measurements and Information Transfer 2006; 65940S (2007) https://doi.org/10.1117/12.725619
Event: Lasers for Measurements and Information Transfer 2006, 2006, St. Petersburg, Russian Federation

Abstract

Propagation of meridional beams in conical optical fibers (tapers) is considered. An equation is obtained that relates the beam parameters at the input and the output of a taper. This equation is valid for any physically admissible values of the taper angle β. Based on the equation obtained, the aperture properties of dielectric tapers are analyzed. Explicit formulas and their asymptotics as β -> 0 are obtained for the input and output apertures of these tapers. A laboratory technology is worked out for thawing tapers from cylindrical preforms for multimode optical fibers with silica core and silica-doped fluorine cladding. A family of such tapers with the following geometric parameters is drawn: the smaller diameter of a taper d = 0.2 - 1.0 mm, the ratio of the larger diameter to the smaller one (taper ratio) D/d = 1.0 - 5.0, and the taper length H = 30 - 150 cm.

Citation Download Citation

Aleksander A. Makovetskii and Aleksander A. Zamyatin "A silica optical fiber with an expanding conical end", Proc. SPIE 6594, Lasers for Measurements and Information Transfer 2006, 65940S (23 January 2007); https://doi.org/10.1117/12.725619

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