Nonlinear frequency conversion in waveguide directional couplers

被引：27

作者：

Dong, P ^{[1
]}

Kirk, AG ^{[1
]}

机构：

[1] McGill Univ, Dept Elect & Comp Engn, Photon Syst Grp, Montreal, PQ H3A 2A7, Canada

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.93.133901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Nonlinear optical effects for frequency conversion require a phase-matching condition to efficiently generate a coherent field at the new wavelength. We find that the phase-matching condition can be replaced by a resonance condition when the nonlinear effect takes place in a waveguide directional coupler. We apply this theory to second-harmonic generation and find a theoretical conversion efficiency of 100%, equivalent to the perfect phase-matching condition. An example of the design of such waveguide directional coupler is presented.

引用

页码：133901 / 1

页数：4

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