Demonstration of broadband frequency tripling based on cascaded partially deuterated KDP crystals

被引：2

作者：

Wang, Wei ^{[1
,2
]}

Wang, Fang ^{[1
]}

Wang, Jing ^{[1
]}

Han, Wei ^{[1
]}

Feng, Bin ^{[1
]}

Li, Keyu ^{[1
]}

Li, Fuquan ^{[1
]}

Jia, Huaiting ^{[1
]}

Xiang, Yong ^{[1
]}

Wang, Liquan ^{[1
]}

Zhong, Wei ^{[1
]}

Zhang, Xiaomin ^{[1
]}

Zhao, Shengzhi ^{[2
]}

机构：

[1] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Peoples R China

[2] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China

来源：

JOURNAL OF OPTICS | 2010年 / 12卷 / 07期

关键词：

deuteration level; third-harmonic generation; phase-matching; bandwidth acceptance; spacing; cascaded crystals; MATCHED 2ND-HARMONIC GENERATION; 3RD-HARMONIC GENERATION; ULTRASHORT;

D O I：

10.1088/2040-8978/12/7/075201

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The cascaded KDP crystal scheme with different deuteration levels for enhancing the bandwidth of third-harmonic generation (THG) is experimentally demonstrated in this paper. The deuteration level of a partially deuterated KDP crystal is used as a degree of freedom to alter the phase-matching (PM) wavelength. The experimental results show that this scheme can increase the bandwidth acceptance in broadband frequency tripling. In addition, the spacing between the two cascaded crystals has significant influence on the THG spectrum as well as THG conversion efficiency, and a relatively ideal THG spectrum can be obtained by the optimized parameters. Meanwhile, nonlinear-coupled wave equations are used to theoretically analyze the experimental results, and the experimental results are consistent with the numerical simulation.

引用

页数：6

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