Tianqi Zhang, Mudong Wang, Yang Xue, Jinlong Xu, Zhenda Xie, Shining Zhu, "Liquid metal as a broadband saturable absorber for passively Q-switched lasers," Chin. Opt. Lett. 18, 111901 (2020)
- Chinese Optics Letters
- Vol. 18, Issue 11, 111901 (2020)
Fig. 1. (a) As-prepared suspension of GaInSn nanospheres. (b) SEM image. (c) Size distribution. (d) EDS spectrum.
Fig. 2. Transmittance curve versus incident optical power intensity of GaInSn nanospheres at (a) 1.3 and (b) 2 μm. The typical Z-scan results are shown in the insets.
Fig. 3. Experimental setup of passively Q-switched laser with GaInSn nanospheres as SAs.
Fig. 4. Dependence of continuous-wave (CW) and Q-switching (QS) output power on absorbed pump power at (a) 1.3 and (b) 2 μm.
Fig. 5. Pulse duration and repetition rate variation with increasing pump power at (a) 1.3 and (b) 2 μm.
Fig. 6. Typical temporal pulse trains of Q-switched lasers operating at (a) 1.3 and (b) 2 μm with GaInSn nanospheres SAs.
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