Baoquan Yao, Ke Yang, Shuyi Mi, Junhui Li, Disheng Wei, Jinwen Tang, Long Chen, Xiaoxiao Hua, Chao Yang, Xiaoming Duan, Tongyu Dai, Youlun Ju, Yuezhu Wang. Research Progress of High-Power Ho∶YAG Lasers and Its Application for Pumping Mid-Far-Infrared Nonlinear Frequency Conversion in ZGP, BGSe and CdSe Crystals[J]. Chinese Journal of Lasers, 2022, 49(1): 0101002
- Chinese Journal of Lasers
- Vol. 49, Issue 1, 0101002 (2022)
![Schematic of optical path for 1 kHz Ho∶YAG Q-switched laser[23]](/richHtml/zgjg/2022/49/1/0101002/img_1.jpg)
Fig. 1. Schematic of optical path for 1 kHz Ho∶YAG Q-switched laser[23]
![Average output power of second stage amplifier versus pump power [23]](/richHtml/zgjg/2022/49/1/0101002/img_2.jpg)
Fig. 2. Average output power of second stage amplifier versus pump power [23]
![Schematic of optical path for 10 kHz Ho∶YAG Q-switched laser[24]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Schematic of optical path for 10 kHz Ho∶YAG Q-switched laser[24]
Fig. 4. M2 and transverse 2D beam profile at 231 W [24]
Fig. 5. Output power of second stage amplifier [24]
Fig. 6. Schematic of optical path for 20 kHz Ho∶YAG Q-switched laser[25]
Fig. 7. Average output powers of R-S-S and T-S-S amplifiers [25]
Fig. 8. Schematic of 102 W ZGP MOPA system with physical map of ZGP crystal with aperture of 15 mm×15 mm shown in inset[29]
Fig. 9. Output power of ZGP OPA [29]
Fig. 10. Schematic of optical path for 161 W ZPG MOPA system[25]
Fig. 11. Average output power of ZGP OPA [25]
Fig. 12. Average output power of idler light at different wavelengths with transmission spectrum of ZGP crystal shown in inset [30]
Fig. 13. Schematic diagram of 11.4 W 8.3 μm cascaded ZGP OPA[31]
Fig. 14. Output power of 8.3 μm idler light from ZGP OPA versus 2.8 μm pump power [31]
Fig. 15. Schematic of optical path for 5.12 W mid-infrared BGSe OPO[35]
Fig. 16. M2 of ring cavity BGSe OPO signal light at 3.04 W [35]
Fig. 17. Schematic of optical path for narrow bandwidth BGSe OPO＋ZGP OPA system[36]
Fig. 18. Spectra of signal light and idler light output from ZGP OPA[36]
Fig. 19. Schematic of optical path for seed-injection CdSe OPO[40]
Fig. 20. Output power of 10.1 μm idler light versus pump power under different injection seed laser powers [40]
Fig. 21. Characteristics of idler light at 11 μm from seed-injection CdSe OPO[41]. (a) Spectrum; (b) M2 at 802 mW
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Table 1. Latest research results of mid-far infrared laser using linear methods
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Table 2. Linewidths of mid-infrared lasers output from ZGP and BGSe crystals under different phase-matching modes unit: nm
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