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Improved delocalization of higher-order modes in large-pitch fibers by breaking the symmetry

: Jansen, Florian; Stutzki, Fabian; Jauregui, Cesar; Limpert, Jens; Tünnermann, Andreas


Optical Society of America -OSA-, Washington/D.C.:
Advanced Solid State Lasers, ASSL 2013 : October 27, 2013 - November 1, 2013, Paris, France
Washington, DC: OSA, 2013 (OSA Technical digest series)
ISBN: 978-1-55752-982-4
Paper ATu3A.07
Conference "Advanced Solid State Lasers" (ASSL) <2013, Paris>
Conference Paper
Fraunhofer IOF ()

We present an enhanced large-pitch fiber design with lower symmetry which results in very high mode discrimination. This structure has been obtained by translating the non-symmetric characteristics of spiral geometries into a hexagonal lattice.