Abstract
We demonstrate a passively Q-switched Nd: YAG quasi-three-level laser operating at 946nm using MoS2 as saturable absorber. A maximum average output power of 210mW is achieved at an absorbed pump power of 6.67W with a slope efficiency of about 5.8%. The shortest pulse width and maximum pulse repetition frequency are measured to be 280ns and 609kHz, respectively. The maximum pulse energy and maximum pulse peak power are therefore estimated to be about 0.35μJ and 1.23W, respectively. This work represents the first MoS2-based Q-switched laser operating at 0.9µm spectral region.
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