Abstract
We demonstrated a passively -switched solid-state Tm:YAG laser using topological insulator (TI) as the saturable absorber (SA) for the first time, to the best of our knowledge. The -switched laser pulses were obtained with the minimum pulse width of 382 ns, the maximum pulse energy of 4.8 μJ, the maximum average output power of 272 mW, and a pulse repetition rate of 57.67 kHz. The results indicate that can be a promising kind of saturable absorber in the 2 μm wavelength region.
© 2018 Optical Society of America
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