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Proceedings Paper

Investigations of bending loss oscillations in large mode area photonic crystal fibers
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Paper Abstract

We demonstrate that bending loss in large mode area photonic crystal fiber (LMA PCF) reveals a strong dependence of the amplitude and location of the loss peaks on the bend radius and on the fiber angular orientation. To do so we measured bending induced loss in LMA PCF as a function of wavelength in a broad spectral range (800-1500 nm) for different bend radii and for different angular orientations of the fiber with respect to the bending plane. The oscillations of bending loss with the bend radius and orientation are particularly well pronounced when the radiative component of the fundamental mode is reflected from the flat boundary of the holey cladding. We also show the good agreement between our measurement results and earlier simulations relying on a finite element method with perfectly matched layers and equivalent index model.

Paper Details

Date Published: 21 April 2008
PDF: 5 pages
Proc. SPIE 6990, Photonic Crystal Fibers II, 69900K (21 April 2008); doi: 10.1117/12.781493
Show Author Affiliations
Tadeusz Martynkien, Wroclaw Univ. of Technology (Poland)
Vrije Univ. Brussel (Belgium)
Jacek Olszewski, Wroclaw Univ. of Technology (Poland)
Waclaw Urbanczyk, Wroclaw Univ. of Technology (Poland)
Tomasz Nasilowski, Vrije Univ. Brussel (Belgium)
Francis Berghmans, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 6990:
Photonic Crystal Fibers II
Kyriacos Kalli; Waclaw Urbanczyk, Editor(s)

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