Bartnick, MoritzBharathan, GayathriBrès, Camille-Sophie2024-04-262024-04-262024-04-26202310.1117/12.2648361https://infoscience.epfl.ch/handle/20.500.14299/207516We demonstrate a polarization-maintaining passively mode-locked thulium-doped fibre laser that can operate at two different repetition rates (dual-comb) simultaneously. Based on the presented approach, we observe beat notes with a free spectral range of 1.97 kHz and aim to realize a free-running dual-comb source in the 2 μm band.Fiber lasersMode lockingPhotodiodesPulsed laser operationThuliumtext::conference output::conference proceedings::conference paper