Chu Hongwei, Li Yufei, Zhao Shengzhi
School of Information Science and Engineering, Shandong University, Jinan 250100, China.
Appl Opt. 2011 Jan 20;50(3):360-5. doi: 10.1364/AO.50.000360.
Deuterated potassium dihydrogen phosphate (DKDP) crystal is one of the most commonly used electro-optical (EO) Q-switch materials. A traditional DKDP EO Q-switch in the Pockels cell has a pair of electrodes, resulting in a nonuniform electric potential along the radial direction. Theoretical analysis and calculation show the radial nonuniform electric potential of DKDP crystals can be improved by adding a pair of auxiliary electrodes. Meanwhile, the experimental results demonstrate that the Q-switched laser characteristics are greatly improved with auxiliary electrodes added to DKDP crystal.
氘代磷酸二氢钾（DKDP）晶体是最常用的电光（EO）调Q开关材料之一。普克尔盒中的传统DKDP电光调Q开关有一对电极，导致沿径向的电势不均匀。理论分析和计算表明，通过添加一对辅助电极可以改善DKDP晶体的径向电势不均匀性。同时，实验结果表明，在DKDP晶体中添加辅助电极后，调Q激光特性得到了极大改善。
