Passive Q-switching and Q-switched Mode-Locking Operations of 2 Μm Tm:CLNGG Laser with MoS_2 Saturable Absorber Mirror

With MoS2 as saturable absorber, passive Q-switching and Q-switched mode-locking operations of a Tm-doped calcium lithium niobium gallium garnet (Tm: CLNGG) laser were experimentally demonstrated. The Q-switched laser emitted a maximum average output power of 62 mW and highest pulse energy of 0.72 mu J. Q-switched mode locking was also obtained in the experiment. The research results will open up applications of MoS2 at the mid-infrared wavelength. (C) 2015 Chinese Laser Press