Mode evolution in long tapered fibers with high tapering ratio Kerttula, Juho ; Filippov, Valery ; Ustimchik, Vasily ; Chamorovskiy, Yuri ; Okhotnikov, Oleg G. Abstract Publication: Optics Express Pub Date: November 2012 DOI: 10.1364/OE.20.025461 Bibcode: 2012OExpr..2025461K