Abstract
We have achieved stable output of Q-switched mode-locked laser at 1.06 μm by using MoS2/MoSe2 heterostructure saturable absorber. The saturable absorption characteristics of MoS2/MoSe2 heterojunction is investigated. At a pump power of 10 W, Q-switched mode-locked pulses with a repetition rate of 26 MHz, a minimum envelope width of 30.9 ns, and a maximum single pulse energy of 23.07 nJ are obtained. Compared with the previous results obtained on Q-switched mode-locked lasers with two-dimensional materials, higher envelope repetition rate and shorter envelope duration can be obtained. The results demonstrate that the MoS2/MoSe2 heterojunction is a competitive saturable absorber for all-solid-state lasers.
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