Extremely large-mode-area photonic crystal fibre with low bending loss Napierała, Marek ; Nasiłowski, Tomasz ; Bereś-Pawlik, Elżbieta ; Berghmans, Francis ; Wójcik, Jan ; Thienpont, Hugo Abstract Publication: Optics Express Pub Date: July 2010 DOI: 10.1364/OE.18.015408 Bibcode: 2010OExpr..1815408N