THE BIDIFFRACTIVE GRATING COUPLER

被引：13

作者：

FATTINGER, C

机构：

[1] F. Hoffmann-La Roche Ltd., Pharmaceutical Research New Technologies

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 13期

关键词：

D O I：

10.1063/1.108658

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A novel optical device for coupling a light beam to a planar waveguide structure and for decoupling the guided wave after a certain distance of propagation is demonstrated. The beam coupler comprises two superimposed uniform dielectric diffraction gratings with different periodicities and/or different orientations incorporated into a planar surface-wave supporting structure. The bidiffractive coupler has translational invariant coupling efficiency and is ideally suited for optical surface probing using electromagnetic surface mode propagation over short distances only.

引用

收藏

页码：1460 / 1462

页数：3

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