Mid-infrared radiation in an aperiodically poled LiNbO3 superlattice induced by cascaded parametric processes

被引：15

作者：

Guo, HC ^{[1
]}

Qin, YQ ^{[1
]}

Shen, ZX ^{[1
]}

Tang, SH ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2004年 / 16卷 / 47期

关键词：

D O I：

10.1088/0953-8984/16/47/001

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The cascaded parametric processes, i.e. optical parametric oscillation (OPO) and difference frequency generation (DFG), can be used to induce efficient CW mid-infrared radiation at 4-5 mum in a single optical superlattice obtained by aperiodically poling a ferroelectric crystal. The superlattice consists of basic building blocks modulated by a spatial function. We numerically solve the coupling equations considering pump depletion and mid-IR absorption and realize the optimal condition for the cascaded frequency-down-conversion processes. Simultaneously, it is seen that the output performance is enhanced by the cascaded parametric design compared to the standard OPO configuration.

引用

页码：8465 / 8474

页数：10

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