Lu Xi, Cong Yin, Jianbo Wang, Chunying Shi, Shan Cai, Ruonan Liu, Mengyao Li, Chaochao Zhang. Research on Thermal-Frequency Characteristics of 633 nm Internal-Mirror He-Ne Laser[J]. Chinese Journal of Lasers, 2022, 49(6): 0601002
- Chinese Journal of Lasers
- Vol. 49, Issue 6, 0601002 (2022)
Fig. 1. Longitudinal mode distribution of He-Ne laser tube
Fig. 2. Gain-frequency curve of He-Ne laser tube (double longitudinal mode)
Fig. 3. Structural diagram of frequency stabilization for double longitudinal mode thermal frequency stabilization method
Fig. 4. Voltage error between two longitudinal modes and laser tube temperature versus time
Fig. 5. Relationship between wall temperature after thermal equilibrium for laser tube and ambient temperature
Fig. 6. Laser preheating and locking process
Fig. 7. Beat frequency curve of laser frequency in steady state
Fig. 8. Allan variance of laser frequency in steady state
Fig. 9. Experimental result of laser frequency repeatability in steady state
Fig. 10. Laser tube temperature versus ambient temperature after frequency stabilization
Fig. 11. Shift of laser frequency with ambient temperature
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