Da Lin, Jing Wang, Bingxuan Li, Wenbin Liao, Zhanglang Lin, Kaifei Tang, Ke Li, Ge Zhang. Frequency degeneracy of transverse modes in Nd∶YVO4 lasers[J]. Chinese Journal of Lasers, 2021, 48(20): 2001003
- Chinese Journal of Lasers
- Vol. 48, Issue 20, 2001003 (2021)
Fig. 1. Schematic of experimental setup
Fig. 2. Laser frequency signals measured in the experiment and their theoretical values. Line indicates theoretical value and scatter indicates experimental value
Fig. 3. Schematic of frequency degeneracy in 1/2 degenerate state
Fig. 4. Beam intensity distribution at different cavity lengths
Fig. 5. Frequency spectra of output laser beams in the vicinity of 1.5 GHz at different cavity lengths. (a) L=47.25 mm; (b) L=48.25 mm; (c) L=49.85 mm; (d) L=50.35 mm; (e) L=50.65 mm; (f) L=50.85 mm; (g) L=51.25 mm; (h) L=52.25 mm; (j) L=54.25 mm
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