摘要
在PPKTP晶体上进行了飞秒激光刻写波导的实验研究,优化了c-切PPKTP晶体中写制二型波导的工艺参数.当波导长度为10mm,宽度为14.5μm,准相位匹配波长为1064nm时,实现了单模传输.利用该波导对调QNd:YAG激光进行了准相位匹配倍频实验,实现的二次谐波转换效率为39.8%.
We present in this paper the fabrication and characterization of type II waveguide in c-cut periodically poled KTiOPO4 crystal. The waveguide was fabricated by using a femtosecond laser, and the fabrication process was optimized. In our experiments single mode propagation was observed at optimal waveguide width of 14.5 μm and quasi-phase matching wavelength of 1064 nm. The second-harmonic conversion efficiency of 39.8 % can be achieved.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2010年第1期307-310,共4页
Acta Physica Sinica
基金
国家自然科学基金(批准号:60677013)
高等学校博士学科点专项科研基金(批准号:20060055021)资助的课题~~
