Polymer Fiber Lasers. - Reinhard Caspary; Florian Jakobs; Jana Kielhorn; Pen Yiao Ang; Marko Cehovski; Matthias Beck; Hans-Hermann Johannes; Sebastian Balendat; Jörg Neumann; Stefanie Unland; Simon Spelthann; Jonas Thiem; et al. (ICTON, 2019)