Strong Bragg gratings photoinduced by 633-nm illumination in evaporated AS2Se3 thin films

被引：24

作者：

Robinson, TG ^{[1
]}

DeCorby, RG

McMullin, JN

Haugen, CJ

Kasap, SO

Tonchev, D

机构：

[1] Univ Alberta, Dept Elect Engn, Edmonton, AB T6G 2V4, Canada

[2] TRLabs, Edmonton, AB T5K 2P7, Canada

[3] Univ Saskatchewan, Dept Elect Engn, Saskatoon, SK S7N 5A9, Canada

来源：

OPTICS LETTERS | 2003年 / 28卷 / 06期

关键词：

D O I：

10.1364/OL.28.000459

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Bragg gratings are used in several photonic devices to reflect, and thus to isolate, specific wavelengths of light. Gratings can be photoinduced in chalcogenide glasses by illumination of bandgap light in an interference pattern. We used holographic interferometry to create Bragg gratings in amorphous As2Se3 thin films with a period of 0.56 mum by illumination with 633-nm light. The quality of the gratings was tested in real time, and refractive-index modulations as high as 0.037 were measured. These gratings were found to be stable over a period of several months if they were kept in the dark. (C) 2003 Optical Society of America.

引用

页码：459 / 461

页数：3

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