Second order nonlinear interactions in periodic waveguides

被引：0

作者：

D'Orazio, A ^{[1
]}

de Ceglia, D ^{[1
]}

De Sario, M ^{[1
]}

Petruzzelli, V ^{[1
]}

Prudenzano, F ^{[1
]}

机构：

[1] Politecn Bari, Dipartimento Elettrotecn & Elettron, I-70125 Bari, Italy

来源：

ICTON 2004: 6TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, PROCEEDINGS, VOL 1 | 2004年

关键词：

D O I：

暂无

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We illustrate the results on the investigation of second harmonic generation (SHG) in planar nonlinear waveguides assisted by a Bragg grating, along the propagation direction, reproducing a photonic-bandgap (PBG) structure. The analysis is performed in time domain by using a home-made finite difference time domain (FDTD) computer code that exploits the auxiliary differential equations (ADE) scheme, in order to take into account the dispersion effect. As it is known, by tuning the signal at fundamental wavelength at the band edge the density of optical modes is enhanced, allowing the group velocity decrease and a strong localization of the energy inside the nonlinear structure, being the conversion efficiency of the SHG process drastically increased.

引用

页码：126 / 130

页数：5

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