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Proceedings Paper

Thermal effect-resilient design of large mode area double-cladding Yb-doped photonic crystal fibers
Author(s): Enrico Coscelli; Federica Poli; Mette M. Jørgensen; Thomas T. Alkeskjold; Lasse Leick; Jes Broeng; Michele Sozzi; Alessandro Candiani; Annamaria Cucinotta; Stefano Selleri
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Paper Abstract

The effects of thermally-induced refractive index change on the guiding properties of different large mode area fibers have been numerically analyzed. A simple but accurate model has been applied to obtain the refractive index change in the fiber cross-section, and a full-vector modal solver based on the finite-element method has been used to calculate the guided modes of the fibers operating at high power levels. The results demonstrate that resonant structures added to the fiber cross-section can be exploited to provide efficient suppression of high-order modes with a good resilience to thermal effects.

Paper Details

Date Published: 26 February 2013
PDF: 7 pages
Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86012O (26 February 2013); doi: 10.1117/12.2004048
Show Author Affiliations
Enrico Coscelli, Univ. degli Studi di Parma (Italy)
Federica Poli, Univ. degli Studi di Parma (Italy)
Mette M. Jørgensen, Technical Univ. of Denmark (Denmark)
Thomas T. Alkeskjold, NKT Photonics A/S (Denmark)
Lasse Leick, NKT Photonics A/S (Denmark)
Jes Broeng, Technical Univ. of Denmark (Denmark)
Michele Sozzi, Univ. degli Studi di Parma (Italy)
Alessandro Candiani, Univ. degli Studi di Parma (Italy)
Annamaria Cucinotta, Univ. degli Studi di Parma (Italy)
Stefano Selleri, Univ. degli Studi di Parma (Italy)


Published in SPIE Proceedings Vol. 8601:
Fiber Lasers X: Technology, Systems, and Applications
Sami T. Hendow, Editor(s)

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