Optimized coupling of a Gaussian beam into an optical waveguide with a grating coupler: Comparison of experimental and theoretical results

被引：32

作者：

Pascal, D

Orobtchouk, R

Layadi, A

Koster, A

Laval, S

机构：

[1] Institut d’Électronique Fondamentale, Centre National de la Recherche Scientifique, Unité de Recherche Associée 22, Orsay, F 91405

来源：

APPLIED OPTICS | 1997年 / 36卷 / 12期

关键词：

integrated optics; optical waveguides; grating couplers;

D O I：

10.1364/AO.36.002443

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The coupling efficiency of grating couplers is derived for a Gaussian incident beam. Its optimum value depends on the beam waist and on the position of a light spot with respect to the coupler edge for given grating parameters. The characteristic coupling length has been experimentally determined for the grating coupler studied. Relative measurements of the coupling efficiency as a function of incident beam characteristics are in good agreement with the numerical results. (C) 1997 Optical Society of America.

引用

页码：2443 / 2447

页数：5

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