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Proceedings Paper

Silica-based air-clad fibres: evaluation of drawing parameters
Author(s): Ruth Renner-Erny; Loredana Di Labio; Valerio Romano; Willy Lüthy; T. Feurer
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Paper Abstract

In recent years, photonic crystal fibres (PCF) have attracted much interest because of their unique possibilities in mode selection. They allow high index as well as low index core geometries and light guidance is provided either by modified total internal reflection or by the photonic bandgap. An example for the high index guiding type of PCF is the fibre with air-cladding, the subject of our investigation. We report on experiments to produce this type of fibre. The silica preforms consist of a central rod surrounded by tubes, all packed into a larger tube. Fibres have been drawn at various furnace temperatures, drawing forces, and pressures. A suitable set of parameters has been determined that allows drawing airclad fibres. The parameters are a furnace temperature of 1750°C, a drawing force of 0.25 N, and a pressure of 10 kPa. An air-clad fibre with only one hexagonal ring of holes produced with this set of parameters already shows guiding of light. Light propagation in this fibre is simulated with BeamPROP 6.0 computer code. The experimental results are compared to the simulations.

Paper Details

Date Published: 18 April 2006
PDF: 9 pages
Proc. SPIE 6182, Photonic Crystal Materials and Devices III (i.e. V), 61821Y (18 April 2006); doi: 10.1117/12.662388
Show Author Affiliations
Ruth Renner-Erny, Univ. of Bern (Switzerland)
Loredana Di Labio, Univ. of Bern (Switzerland)
Valerio Romano, Univ. of Bern (Switzerland)
Willy Lüthy, Univ. of Bern (Switzerland)
T. Feurer, Univ. of Bern (Switzerland)

Published in SPIE Proceedings Vol. 6182:
Photonic Crystal Materials and Devices III (i.e. V)
Richard M. De La Rue; Pierre Viktorovitch; Ceferino Lopez; Michele Midrio, Editor(s)

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