设计建造了通光口径为 2 4 0 mm× 2 4 0 mm等离子体电极普克尔盒 ,在 KDP的两侧用磁控阴极放电产生了覆盖全口径的等离子体电极。用仿真线成形 ,产生了电压幅值 1 0 k V,脉冲上升时间50 ns,脉宽 50 0 ns,顶部电压波动 <± 2 %的矩形开关脉冲。测得电光开关的光学特性为全口径静态透过率 85.8% ,静态消光比 1 32 ,开关效率 97.6% ,开关上升时间 95ns。 A Pokel box with a diameter of 240 mm and a diameter of 240 mm was designed and fabricated. A plasma cathode covered with full diameter was produced by magnetron cathodic discharge on both sides of KDP. With the use of a dummy wire, a rectangular switching pulse of voltage amplitude 10 kV, pulse rise time 50 ns, pulse width 50 0 ns, and top voltage fluctuation <± 2% was generated. The optical characteristics of the electro-optic switch were measured as the full-aperture static transmittance of 85.8%, the static extinction ratio of 1 32, the switching efficiency of 97.6% and the switch rising time of 95 ns.