摘要
采用高压脉冲电场极化,通过电光效应实时监控、倍频通光二维监控等手段的应用,制备出周期为9μm、长为8 mm、宽为3 mm、厚为1 mm的周期极化KTiOPO4晶体(PPKTP);倍频通光实验中,当波长1064 nm的基频光功率为1 W时,得到了功率为13.5 mW的532 nm连续倍频绿光输出,单通倍频转换效率为1.35%,归一化转换效率为1.69%/(W.cm),接近理论最大值。
A periodically poled KTiOPO4 （PPKTP） for second harmonic generation （SHG） with 9 μm period, 8 mm length, 3 mm width and 1 mm thickness has been successfully fabricated by applying an external electic field of high pulsed voltage. During the program, the real time monitoring measures such as electro-optical effect method, second harmonic generation two-dimensional method were used. 13.5 mW of 532 nm second harmonic generation green light was obtained pumped by 1 W, 1064 nm fundamental wave. The single-pass second harmonic generation conversion efficiency was 1.35% and the normalized conversion efficiency was 1.69% /（W·cm）, which was close to the maximal theoretic value.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2007年第6期1063-1066,共4页
Acta Optica Sinica
基金
国家自然科学基金(60377018)资助项目
关键词
非线性光学
准相位匹配
周期极化
倍频
PPKTP晶体
nonlinear optics
quasi-phase matching
periodic poling
second harmonigeneration
PPKTP crystal
