Thévenaz, LucYang, FanGyger, Flavien2021-08-272021-08-272021-08-272021-06-0810.1364/OFC.2021.Tu1E.7https://infoscience.epfl.ch/handle/20.500.14299/180827Optical amplification in hollow core fibers has been achieved using stimulated Brillouin scattering directly in the gaseous medium. More than 50 dB optical gain is observed over 50 m of fiber using 200 mW of pump power.Optical fiber amplifiersStimulated emissionFiber nonlinear opticsOptical fiber communicationOptical pumpingBrillouin scatteringOptical scatteringtext::conference output::conference proceedings::conference paper