光学学报, 2003, 23 (7): 793, 网络出版: 2006-06-27
周期极化KTiOPO4晶体连续倍频绿光输出
Frequency Doubled CW Green Light Generation in Periodically Poled KTiOPO4 Crystal
: 非线性光学 二次谐波产生 准相位匹配 周期极化 KTiOPO4(KTP)晶体 nonlinear optics second harmonic generation （SHG） quasi phase matching periodic poing KTiOPO4 （KTP） crystal
摘要
采用外加电场极化方法,在Z切1 mm厚的KTiOPO4晶体中实现了周期性极化反转.晶体的极化反转周期为9.0 μm,相互作用长度为3 mm.波长为1.064 μm的基频光功率为900 mW,晶体中心温度为32 ℃时,获得0.532 μm、22 μW的倍频绿光输出,二次谐波转换效率为0.0024%.
Abstract
The electric field poling was used to achieve the periodic poling Z cut 1 mm KTiOPO 4 crystal (PPKTP). The grating period inverted was 9.0 μm and the interaction length was 3 mm in the crystal. By using a CW Nd∶YAG laser as a fundamental wave at 1.064 μm, input power in PPKTP of 900 mW, 22 μW green SHG at 0.532 μm was obtained at 32 ℃. The conversion efficiency of SHG was 0.0024%.
于建, 倪文俊, 薛挺, 桑梅, 于云翔, 李世忱, 师瑞泽, 胡永岚, 黄朝恩. 周期极化KTiOPO4晶体连续倍频绿光输出[J]. 光学学报, 2003, 23(7): 793. 于建, 倪文俊, 薛挺, 桑梅, 于云翔, 李世忱, 师瑞泽, 胡永岚, 黄朝恩. Frequency Doubled CW Green Light Generation in Periodically Poled KTiOPO4 Crystal[J]. Acta Optica Sinica, 2003, 23(7): 793.
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