Coractive’s new Erbium/Ytterbium co-doped fibre designed for EYDFA applications requiring high output power, high efficiency and low 1 μm parasitic ASE emission. Featuring a large mode area, high doping concentration and high efficiency, DCF-EY-25/250P-ASEF is the solution fo high poer lasers at 1.5 μm, eye-safe fiber lasers and amplifiers, LiDAR and spectroscopy.