Qiaoqiao Fu, Pengxiang Liu, Feng Qi, Weifan Li, Chuncao Niu, Wei Li, Liyuan Guo, Yelong Wang, Zhaoyang Liu. Characteristics of Mirror Misalignment of Plane-Parallel Cavity-Based Optical Parametric Oscillators[J]. Chinese Journal of Lasers, 2022, 49(24): 2408002
- Chinese Journal of Lasers
- Vol. 49, Issue 24, 2408002 (2022)
Fig. 1. Structure of plane-parallel cavity based KTP-OPO
Fig. 2. Pulse envelops of KTP-OPO input pump(dashed),output idler(solid)and depleted pump(dotted),where the inset exhibits OPO output beam profile
Fig. 3. OPO output versus cavity mirror misalignment angle in different directions
Fig. 4. SchematicofKTPprincipaldielectricaxesand crystallographic orientation
Fig. 5. Dependenceof alignment toleranceonpumpbeam diameter and output energy.(a)Dependence of alignment tolerance on pump beam diameter;(b)dependence of alignment tolerance on output energy
Fig. 6. Alignment tolerance as functions of cavity length at given input and output energies.(a)At given input energy;(b)at given output energy
Fig. 7. Input-output relationship of KTP-OPO with different cavity lengths
Fig. 8. Variation of output beam divergent angles in horizontal andverticaldirectionsandroot-mean-square(RMS)pulse energy fluctuation with cavity length
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