Xiaobo Mi, Chaonan Lin, Yongsheng Hu, Houjie Ma, Jiuru He, Fengying Ma, Li Fan, Chongxin Shan, "Eye-safe intra-cavity diamond cascaded Raman laser with high peak-power and narrow linewidth," Chin. Opt. Lett. 22, 041402 (2024)
- Chinese Optics Letters
- Vol. 22, Issue 4, 041402 (2024)
Fig. 1. Schematic setup of the V-shaped folded intra-cavity Nd:YVO4/diamond eye-safe Raman laser. M1, input mirror; M2, folding mirror; M3, dichroic mirror; M4, output coupler; AOS, acousto-optic Q-switch.
Fig. 2. (a) The fundamental laser beam radius distribution in the cavity. (b) The fundamental laser beam radius on both the Nd:YVO4 and the diamond under different thermal lens focal lengths.
Fig. 3. (a) Power transfer characteristic for the fundamental laser at 50 kHz. (b) The fundamental laser emission spectrum at 27.2 W incident pump power. Inset: a single pulse shape.
Fig. 4. Characteristics of the second-Stokes laser. (a) Average output power and pulse energy versus incident pump power at 50 kHz. (b) Emission spectrum for 27.2 W incident pump power. Inset: high-resolution spectrum.
Fig. 5. Characteristics of the second-Stokes laser. (a) Pulse width and peak power versus incident pump power at 50 kHz. (b) Average output power and peak power versus different PRFs.
Fig. 6. Pulse characteristics of the second-Stokes laser at 27.2 W and 50 kHz. (a) Pulse train and (b) single pulse shape.
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