Quasi phase matching in femtosecond pulse volume structured x-cut lithium niobate

被引：60

作者：

Thomas, Jens ^{[1
]}

Hilbert, Vinzenz ^{[1
]}

Geiss, Reinhard ^{[1
]}

Pertsch, Thomas ^{[1
]}

Tuennermann, Andreas ^{[1
,2
]}

Nolte, Stefan ^{[1
,2
]}

机构：

[1] Univ Jena, Abbe Ctr Photon, Inst Appl Phys, D-07743 Jena, Germany

[2] Fraunhofer Inst Appl Opt & Precis Engn, D-07745 Jena, Germany

来源：

LASER & PHOTONICS REVIEWS | 2013年 / 7卷 / 03期

关键词：

Integrated optics; laser writing; lithium niobate; nonlinear optics; quasi phase matching; 2ND-HARMONIC GENERATION; WAVE-GUIDE; LINBO3;

D O I：

10.1002/lpor.201200116

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

All optical inscription of quasi phase matching structures in an x-cut LiNbO3 crystal is demonstrated. Quasi phase matching is obtained by periodically lowering the nonlinear refractive index of the crystal using focussed ultrashort pulses. The structures were used to frequency double 1.55 mu m light. The converted signal could be enhanced by a factor of 70 with respect to the unmodified material. From these measurement it could be deduced that the nonlinearity has been periodically damped up to 20%.

引用

页码：L17 / L20

页数：4

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