Origins of waveguiding in femtosecond laser-structured LiNbO3

被引：194

作者：

Burghoff, J.

Nolte, S.

Tuennermann, A.

机构：

[1] Univ Jena, Inst Angew Phys, D-07743 Jena, Germany

[2] Fraunhofer Inst Angew Opt & Feinmech, D-07745 Jena, Germany

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2007年 / 89卷 / 01期

关键词：

D O I：

10.1007/s00339-007-4152-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Femtosecond laser-induced structural changes in LiNbO3 are studied. Depending on the laser processing parameters two different types of modification are identified and their origin is discussed. Both types of modification can be described within the framework of induced lattice defects. For strong material damage a refractive index increase can be obtained due to the induced stress field. By appropriate tailoring of this stress field thermally stable and highly symmetric waveguides can be obtained well suited for nonlinear integrated-optical applications.

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页码：127 / 132

页数：6

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