Second harmonic generation of diamond-blade diced KTiOPO4 ridge waveguides
Second harmonic generation of diamond-blade diced KTiOPO4 ridge waveguides
复制标题
金刚石刀片切割 KTiOPO4 脊形波导的二次谐波产生
DOI：
10.1364/oe.24.016434
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发表时间：
2016-07-25
期刊：
影响因子：
3.8
通讯作者：
Kip, Detlef
中科院分区：
文献类型：
--
作者：
Chen, Chen;Rueter, Christian E.;Kip, Detlef
本文报道了在KTiOPO4非线性光学晶体中采用碳离子辐照和精密金刚石刀片切割制备脊波导的方法。切块的侧壁具有较低的粗糙度，这使得在制作脊线时的传播损耗低至1dB/cm。在1064 nm和532 nm波长下进行了波导特性研究，在TE和TM极化下都显示出良好的导向性。基于II型相位匹配配置，实现了室温下绿光二次谐波的高效产生。在1064 nm连续波和脉冲基波的泵浦下，双倍频的转换效率分别达到1.12%和12.4%。(C) 2016年美国光学学会
We report on the fabrication of ridge waveguides in KTiOPO4 nonlinear optical crystals through carbon ion irradiation followed by precise diamond blade dicing. The diced side-walls have low roughness, which allows for low propagation loss of similar to 1dB/cm in fabricated of ridges. The waveguide property investigation has been performed at 1064 nm as well as 532 nm, showing good guidance at both TE and TM polarizations. Based on type II phase matching configuration, efficient second harmonic generation of green light at room temperature has been realized. High conversion efficiencies of similar to 1.12% W-1 and similar to 12.4% have been obtained for frequency doubling under the pump of continuous-wave (CW) and pulsed fundamental waves at 1064 nm, respectively. (C) 2016 Optical Society of America