Spatial optical solitons in nonlinearly coupled lithium niobate waveguides

被引：5
|
作者：
Di Falco, A [1 ]
Assanto, G
机构：
[1] Univ Roma Tre, Nonlinear Opt & Optoelect Lab, Natl Inst Phys Matter, I-00146 Rome, Italy
[2] Univ Roma Tre, Dept Elect Engn, I-00146 Rome, Italy
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 04期
关键词：
harmonic generation; lithium niobate (LN); nonlinear optics; optical signal processing; optical solitons;
D O I：
10.1109/LPT.2003.809295
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：
We numerically investigate a novel type of quadratic spatial solitons in the system of surface and buried planar waveguides obtained via direct- and reverse-proton exchange in z-cut lithium niobate, respectively, and coupled by the second-order susceptibility. Through frequency doubling, transverse-electric and transverse-magnetic modes lock into a 1 + 1D solitary wave encompassing orthogonal field components at the two harmonic wavelengths. The phase matching scheme leads to a wavelength-comb filter with adjustable linewidths.
引用
收藏
页码：537 / 539
页数：3
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