Efficiency improvement by high-index cladding in LiNbO3 waveguide quasi-phase-matched wavelength converter for optical communication

被引：10

作者：

Sato, D ^{[1
]}

Morita, T ^{[1
]}

Suhara, T ^{[1
]}

Fujimura, M ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn, Dept Elect, Suita, Osaka 5650871, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 04期

关键词：

difference frequency generation (DFG); lithium niobate; nonlinear optics; optical waveguide; quasi-phase matching (QPM); wavelength conversion;

D O I：

10.1109/LPT.2003.809320

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Quasi-phase-matched difference frequency generation devices for the 1.5-mum band using a LiNbO3 waveguide with a high-index cladding layer of AS(2)S(3) were designed and fabricated. By the cladding, the guided mode profiles were modified, and their overlap was increased. A high normalized conversion efficiency of 790%/W was obtained for 30-mm interaction length.

引用

页码：569 / 571

页数：3

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