Photosensitivity of As2S3 chalcogenide thin films at 1.5 μm

被引：52

作者：

Hô, N ^{[1
]}

Laniel, JM ^{[1
]}

Vallée, R ^{[1
]}

Villeneuve, A ^{[1
]}

机构：

[1] Univ Laval, Ctr Opt Photon & Laser, Quebec City, PQ G1K 7P4, Canada

来源：

OPTICS LETTERS | 2003年 / 28卷 / 12期

关键词：

D O I：

10.1364/OL.28.000965

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Chalcogenide glasses are promising candidates for all-optical switching and various nonlinear applications. However, we show that As2S3 thin films are photosensitive at wavelengths in the 1.5-mum telecommunication window. This sensitivity is evidenced by the formation of self-written waveguides in slabs, where channels as narrow as 1 mum are created. We also show the detrimental effects of such photosensitivity in ridge waveguides. This photosensitivity seems to occur only in thin-film form and not in bulk samples or fibers. (C) 2003 Optical Society of America.

引用

页码：965 / 967

页数：3

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