Xu-Dong Zhang, Yu-Xi Chu, Wei Jia, Ming-Lie Hu. Ultraviolet picosecond conversion efficiency improvement system at 355 nm based on fundamental frequency laser amplified [J]. Acta Physica Sinica, 2019, 68(20): 200601-1
- Acta Physica Sinica
- Vol. 68, Issue 20, 200601-1 (2019)
Fig. 1. (a) Diagram of the traditional 355 nm generating device; (b) diagram of the UV picosecond 355 nm output efficiency improvement system based on fundamental frequency amplification(a) 传统的355 nm产生装置图; (b) 基于基频放大的紫外皮秒355 nm输出效率提升系统装置图
Fig. 2. Power density curves of 1064, 532 and 355 nm laser in crystal with M = 1∶2.
M = 1∶2时晶体中1064, 532和355 nm功率密度变化曲线
Fig. 3. Power density curves of 1064, 532 and 355 nm laser in crystal with M = 1∶1.
M = 1∶1时晶体中1064, 532, 和355 nm功率密度变化曲线
Fig. 4. Relationship between UV 355 nm output power and crystal length under traditional scheme传统方案紫外355 nm输出功率与晶体长度关系曲线
Fig. 5. Effect of different power density ratios M on crystal length and conversion efficiency.
不同功率密度配比M 对晶体长度和转换效率的影响
Fig. 6. Relationship between UV 355 nm output power and crystal length based on fundamental frequency amplification基频放大方案紫外355 nm输出功率与晶体长度关系曲线
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Table 1. Crystal lengths corresponding to the peak conversion as to different power density ratios M
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