In the context of high-power fiber laser applications, effectively single-mode large-mode-area leakage channel fibers employing a single air-hole ring are presented according to a novel design with hole polygonal symmetry around a solid core. Octagonal and decagonal symmetries are studied with attention to penalties arising in bending conditions, aiming for low mode distortion characteristics with respect to hexagonal-lattice fibers.
Fibre large mode area leakage channel poligonali a dispersione modale ridotta / F., Poli; D., Passaro; A., Cucinotta; S., Selleri; Rosa, Lorenzo; Vincetti, Luca. - STAMPA. - (2008). (Intervento presentato al convegno XVII Riunione Nazionale di Elettromagnetismo (RiNEm) 2008 tenutosi a Lecce nel settembre 2008).