Jian Yang, Jiyi Hu, Hongyu Luo, Jianfeng Li, Jishu Liu, Xiaohui Li, Yong Liu. Fe3O4 nanoparticles as a saturable absorber for a tunable Q-switched dysprosium laser around 3 μm[J]. Photonics Research, 2020, 8(1): 70
- Photonics Research
- Vol. 8, Issue 1, 70 (2020)
Fig. 1. Characterizations of Fe 3 O 4
Fig. 2. Nonlinear optical absorption measurement: (a) experimental setup and (b) results at 2.87 μm.
Fig. 3. Experimental setup of the tunable passively Q Dy 3 + Fe 3 O 4
Fig. 4. Q
Fig. 5. (a) Pulse width and repetition rate and (b) pulse energy and output power as a function of the launched pump power.
Fig. 6. (a) Output spectrum, output power, and pulse energy, and (b) repetition rate and pulse width as a function of the wavelength at the launched pump power of 2.89 W.
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