Author Affiliations +
T. Schreiber,1 H. Schultz,1 F. Röser,1 O. Schmidt,1 J. Limpert,1 R. Iliew,1 A. Petersson,2 C. Jacobsen,2 K. P. Hansen,2 J. Broeng,2 A. Tünnermann1,3
1Friedrich-Schiller-Univ. Jena (Germany)
2Crystal Fibre A/S (Denmark)
3Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)