Lina Zhao, Fangxin Cai, Luyang Tong, Ye Yuan, Wenyu Zhang, Yangjian Cai. Theoretical analysis of periodically poled LiNbO3 nonlinear mirror and its application in a passively mode-locked Nd:YSAG laser[J]. Chinese Optics Letters, 2021, 19(9): 091403
- Chinese Optics Letters
- Vol. 19, Issue 9, 091403 (2021)
Fig. 1. (a) Diagram of nonlinear mirror. (b) Nonlinear reflectivity dependence on intracavity peak intensity.
Fig. 2. Diagram of mode-locked Nd:YSAG laser (M1, flat mirror; M2, M3, plane-concave mirror; M4, output coupler; B, Brewster polarization plate; dotted rectangle is nonlinear mirror).
Fig. 3. Average output power dependence on pump power in the CW and CWML regime.
Fig. 4. (a) Mode-locked pulse sequence at 100 ns time scale. (b) Mode-locked pulse sequence at 500 µs time scale.
Fig. 5. Radio frequency waveform of CWML laser.
Fig. 6. Optical spectrum of mode-locked Nd:YSAG laser.
Fig. 7. Second harmonic efficiency at different wavelengths.
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Table 1. Modulation Depth, Saturable Intensity, and Nonsaturable Loss Dependence on Effective Nonlinear Coefficient
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