Tench, Robert E.Robert E.TenchAmavigan, AlexandreAlexandreAmaviganRomano, ClémentClémentRomanoTraore, DaniyaDaniyaTraoreDelavaux, Jean-MarcJean-MarcDelavauxRobin, ThierryThierryRobinCadier, BenoîtBenoîtCadierLaurent, ArnaudArnaudLaurentCrochet, PatricePatriceCrochet2022-03-062022-03-062021https://publica.fraunhofer.de/handle/publica/26633210.1109/JLT.2020.3034477We report the design and performance of a packaged broadband PM hybrid HDFA/TDFA in the 2000-2100 nm band using all-single-clad doped fibers. Internal small signal G = 49.1 dB, small signal NF = 6.5 dB, and P out = 3.54 W are achieved at l s = 2051 nm. The simulated 3 dB output power bandwidth is 98 nm. Comparisons of experimental data and simulations show good agreement. We investigate through simulations an all-Holmium two stage PM optical amplifier design for comparison to the hybrid PM HDFA/TDFA.enDoped Fiber Amplifiersoptical fiber devices004535670journal article