用于KTP晶体极化反转的高压脉冲电源的研究  

Research of High-voltage Pulses Power Supply for Polarization Reversal in KTiOPO_4 Crystals

作　　者：陈亚南[1] 于建[1] 倪文俊[1] 康玉琢[1] 付伟佳[1] 桑梅[1] 李世忱[1] 

机构地区：[1]天津大学精密仪器与光电子工程学院光电信息技术科学教育部重点实验室,天津300072

出　　处：《科学技术与工程》2007年第6期968-971,共4页Science Technology and Engineering

基　　金：国家自然科学基金项目(60372018)资助

摘　　要：分析了KTP晶体的外电场周期极化反转的机理,设计并研制出一种采用高压开关管的高压脉冲电源,可以将任意信号发生器输出的2V方波脉冲波形放大,输出最高电压为5000V、上升沿小于50μs、最大输出电流超过30mA、脉宽为任意的方波脉冲。用此高压脉冲电源在KTP晶体上进行多次极化反转实验,得到良好的实验结果。The theory of polarization reversal in KTP crystal by the electric field was analysed. A high-voltage pulses power supply with a high voltage switch tube was designed and developed, which can amplify the 2 V pulse output of arbitrary waveform generator, with the maximum voltage output 5 000 V, rise time is less than 50 Ixs, the biggest current output is over 30 mA and the square width of the pulse is arbitrary. This high voltage pulses power supply had been used in a number of KTP crystal polarization reversal experiments, and good results was obtained.

关 键 词：高压电源 准相位匹配 周期极化KTP 极化反转 

分 类 号：O437.1[机械工程—光学工程]