ANALYSIS OF WAVEGUIDED GAUSSIAN BEAMS COUPLED BY MISALIGNED OR CURVED GRATINGS

被引：8

作者：

HARDY, A ^{[1
]}

STREIFER, W ^{[1
]}

机构：

[1] XEROX CORP,PALO ALTO RES CTR,PALO ALTO,CA 94304

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA | 1979年 / 69卷 / 09期

关键词：

D O I：

10.1364/JOSA.69.001235

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coupled contradirectional mode equations are derived that describe Hermite-Gaussian beam interactions in corrugated thin-film waveguides when the grating teeth are curved and/or tilted. Coupling coefficients are evaluated for identical and hybrid modes. The problem of focusing a guided Gaussian beam reflection from a curved grating is discussed. It is shown that the grating curvature should serve to match the phase fronts of the contradirectional Gaussians and the grating should extend axially to include the region where the two beam widths are approximately equal.

引用

页码：1235 / 1242

页数：8

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