首页|Doubly Q-switched mode-locked Tm:YAP laser at 2?m with ternary MoWS2 alloy and EOM
Doubly Q-switched mode-locked Tm:YAP laser at 2?m with ternary MoWS2 alloy and EOM
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NSTL
Elsevier
2D MoWS2 is fabricated by the chemical-vapor transport and liquid-phase exfoliation method. Its nonlinear optical response is measured. By using MoWS2 SA and EOM, an LD-pumped doubly Q-switched mode-locked (QML) Tm:YAP laser at 2 mu m waveband is presented. The average output power, the pulse width, and the pulse peak power of the Q-switched envelope are measured. In comparison to the singly QML laser with MoWS2 SA or EOM, the doubly QML laser can generate shorter pulse duration and higher peak power. Based on the fluctuation mechanism, a developed rate equation model under plane wave approximation is proposed to describe the doubly QML dynamic process. The pulse characteristics of QML laser are numerically simulated and the theoretical simulations are in agreement with the experiment results. Both the experiments and numerical simulations show that MoWS2 is a promising nanomaterial, and the dual-loss-modulated QML laser displays well performance in pulse width compression and peak power enhancement.
NSTL
Elsevier
