权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Accurate Measurement of Second-Order Nonlinear-Optical Coefficients of Stoichiometric LiNbO3 and LiTaO3

化学计量LiNbO3和LiTaO3二阶非线性光学系数的精确测量

基本信息

批准号：
15560035
负责人：
SHOJI Ichiro
金额：
$ 2.37万
依托单位：
CHUO UNIVERSITY (2004)Meiji University (2003)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

项目摘要

We have measured second-order nonlinear-optical coefficients of stoichiometric LiNbO_3, the high-quality crystals of which have been recently developed.The measurement was performed at the fundamental wavelengths of 1.06 and 1.31μm. Undoped and MgO-doped crystals were grown by Oxide company and Hitachi Metals company. They were cut and polished to the wedge samples with the wedge angle of 〜0.15 degree, and the fundamental light was normally focused onto the sample. The dependence of the generated second-harmonic power on the sample thickness, or Maker fringe, was measured. We fully took account of the multiple-reflection effect in the nearly plane-parallel-plate samples.The accurate refractive indices which are essential for analyzing the data are not available for stoichiometric LiNbO_3. If the wedge angle is known, the refractive indices can be obtained by the measurement of the Maker-fringe period. Because it is difficult to directly measure the wedge angle within 10^<-3> accuracy, we estimated the wedge angle and the refractive indices by measurement of the period of interference caused by the multiple reflection in the sample, and of dependence of the transmittance on the sample displacement in the cross-Nicole configuration, both at the fundamental and the second-harmonic wavelengths. This enabled us to determine the nonlinear-optical coefficients with the accuracy of better than 5%, and we found that the nonlinear-optical coefficients of stoichiometric LiNbO_3 and MgO:LiNbO_3 are same with that of congruent ones within the measurement accuracy.

本文测量了新近研制成功的高质量化学计量比LiNbO_3晶体的二阶非线性光学系数，测量波长分别为1.06和1.31μm。未掺杂和MgO掺杂的晶体由Oxide公司和Hitachi Metals公司生长。将它们切割并抛光成楔形样品，楔形角为0.15 °，并且基本光正常聚焦在样品上。测量了产生的二次谐波功率对样品厚度或Maker条纹的依赖性。我们充分考虑了近平行平板样品的多次反射效应，而对于化学计量比的LiNbO_3，我们无法得到准确的折射率，这对分析数据是必不可少的。在已知楔角的情况下，可以通过测量Maker条纹周期来获得折射率。由于很难直接测量10^精度内的楔角<-3>，我们通过测量由样品中的多次反射引起的干涉的周期以及在正交尼科尔配置中透射率对样品位移的依赖性来估计楔角和折射率，在基波和二次谐波波长处都是如此。实验结果表明，在测量精度范围内，化学计量比LiNbO_3和MgO：LiNbO_3的非线性光学系数与同成分LiNbO_3的非线性光学系数相同。

项目成果

期刊论文数量（29）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

High-power blue generation from a periodically poled MgO:LiNbO3 ridge-type waveguide by frequency doubling of a diode end-pumped Nd:Y3Al5O12 laser

DOI：
10.1063/1.1623938
发表时间：
2003-11-03
期刊：
APPLIED PHYSICS LETTERS
影响因子：
4
作者：
Iwai, M;Yoshino, T;Taira, T
通讯作者：
Taira, T

Nagaatsu Ogasawara, Ryoichi Ito: "The Optics Encyclopedia (Semiconductor Lasers)"Wiley-VCH Verlag CmbH. 23 (2004)

Nagaatsu Ogasawara、Ryoichi Ito：“光学百科全书（半导体激光器）”Wiley-VCH Verlag CmbH。

DOI：
发表时间：
期刊：
影响因子：
0
作者：
通讯作者：

High-power continuous wave green generation by single-pass frequency doubling of a Nd:GdVO_4 laser in a periodically poled MgO:LiNbO_3 operating at room temperature

在室温下工作的周期性极化 MgO:LiNbO_3 中，通过单程倍频 Nd:GdVO_4 激光器产生高功率连续波绿光

DOI：
发表时间：
2003
期刊：
Jpn.J.Appl.Phys. 42
影响因子：
0
作者：
N.Karasawa;N.Karasawa et al.;N.Karasawa;N.Karasawa;N.Karasawa;N.Karasawa et al.;N.Karasawa et al.;N.Karasawa;N.Karasawa;N.Karasawa;N.Karasawa et al.;H.Ishizuki;N.Pavel;H.Ishizuki et al.;H.Ishizuki;N.Pavel;K.Mizuuchi
通讯作者：
K.Mizuuchi

Kiminori Mizuuchi, Akihiro Morikawa, Ichiro Shoji 他4名: "High-power continuous wave green generation by single-pass frequency doubling of a Nd:GdVO4 laser in a periodically poled MgO:LiNbO3 operating at room temperature"Jpn.J.Appl.Phys.. 42・11A. L1296-L129

Kiminori Mizuuchi、Akihiro Morikawa、Ichiro Shoji 和其他 4 人：“在室温下运行的周期性极化 MgO:LiNbO3 中，通过 Nd:GdVO4 激光器的单通道倍频实现高功率连续波绿光发电”Jpn.J.Appl。物理.. 42・11A.