2ND-HARMONIC GENERATION EFFICIENCY IN PERIODICALLY POLED LINBO3 WAVE-GUIDES

被引：20

作者：

DELACOURT, D

ARMANI, F

PAPUCHON, M

机构：

[1] Thomson-CSF, Laboratoire Central de Recherches, Domaine de Corbeville

[2] XEROX Palo Alto Research Center, CA 94304

来源：

IEEE JOURNAL OF QUANTUM ELECTRONICS | 1994年 / 30卷 / 04期

关键词：

D O I：

10.1109/3.291378

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 second-harmonic generation efficiency in periodically poled LiNbO3 using titanium indiffusion, has been theoretically investigated. This permits clarifying how the involved guided modes convert the triangle-shaped form of the ferroelectric polarization in the crystal, via the overlap integral between this form and these modes, into an effective periodic nonlinear coefficient. As a consequence, the periodic function that really permits the quasi-phase-matching operation is the modulation of this effective nonlinear coefficient, the shape of which can be far from a triangular shape, as shown using different cases of mode profiles.

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页码：1090 / 1099

页数：10

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