5?W 1952?nm Brillouin-free efficient single clad TDFA

摘要： We report the performance of a two stage single clad (SC) Thulium-doped fiber amplifier (TDFA), delivering an output power of 5 W at 1952 nm without stimulated Brillouin scattering (SBS) for a single-frequency input signal. A slope efficiency greater than 60%, a signal gain greater than 60 dB and an input dynamic range > 30 dB were achieved. The amplifier topology was optimized with a simulation tool, experimental results and simulations are in good agreement.