Tiancheng Zheng, Xianglong Cai, Zhonghui Li, Chencheng Shen, Dong Liu, Jingbo Liu, Jingwei Guo. Visible Broadband Raman Lasers of H2∶CH4∶CO2 Gas Mixture Pumped by 532-nm Laser[J]. Chinese Journal of Lasers, 2021, 48(21): 2101006
- Chinese Journal of Lasers
- Vol. 48, Issue 21, 2101006 (2021)
Fig. 1. Schematic diagram of stimulated Raman scattering experimental setup
Fig. 2. Steady-state Raman gain coefficients for H2, CO2, and CH4 varying with gas pressure.(a)Forward direction; (b)backward direction
Fig. 3. Curves of energy conversion efficiency of each order Raman component of three gases varying with pressure. (a) H2; (b) CH4; (c) CO2
Fig. 4. Energy conversion efficiency of each order Raman component of three gases varying with pump energy. (a) H2; (b) CH4; (c) CO2
Fig. 5. Curves of conversion efficiency of main Raman light varying with pump energy and laser spectrum in gas mixture. (a) Variation curve; (b) laser spectrogram
Fig. 6. Energy level diagram and phase matching diagram for 853 nm laser generation by four-wave mixing. (a) Energy level diagram; (b) phase matching diagram
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Table 1. Parameters related to Raman gain of H2,CH4 and CO2 at 25 ℃ and 0.5 MPa
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Table 2. Output wavelengths of Raman laser in mixed gas
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