Engineering competing nonlinearities

被引：77

作者：

Bang, O ^{[1
]}

Clausen, CB

Christiansen, PL

Torner, L

机构：

[1] Tech Univ Denmark, Dept Math Modelling, DK-2800 Lyngby, Denmark

[2] Univ Politecn Cataluna, Dept Signal Theory & Commun, Lab Photon, ES-08034 Barcelona, Spain

来源：

OPTICS LETTERS | 1999年 / 24卷 / 20期

关键词：

D O I：

10.1364/OL.24.001413

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Weak modulation of a quasi-phase-matching (QPM) grating opens possibilities for engineering both the average quadratic nonlinearity and the incoherent average cubic nonlinearity induced by QPM. The relative strength of the average quadratic and effective (intrinsic plus induced) cubic nonlinearity is studied for LiNbO3. We show how the induced average cubic nonlinearity can be engineered to dominate the intrinsic material cubic nonlinearity and how doing so will allow the intensity at which the quadratic and cubic nonlinearities balance and thus compete to be decreased to a few gigawatts per square centimeter. (C) 1999 Optical Society of America OCIS codes: 070.4340. 050.2770, 060.4080, 190.5530.

引用

页码：1413 / 1415

页数：3

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