All optical switching in azo-polymer planar waveguide

被引：23

作者：

Heydari, E. ^{[1
]}

Mohajerani, E. ^{[1
]}

Shams, A. ^{[1
]}

机构：

[1] Shahid Beheshti Univ, Laser & Plasma Res Inst, Tehran, Iran

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 05期

关键词：

All optical switching; Azo dye doped polymer waveguide; Photoisomerization; Photoinduced anisotropy; POLARIZATION HOLOGRAPHY; PHOTOINDUCED MOTIONS; MODULATION;

D O I：

10.1016/j.optcom.2010.10.096

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper all optical switching in planar methyl red doped poly (methyl methacrylate) (MR/PMMA) waveguide and the effects of different parameters on this process are presented. Switching was achieved by a 488 nm Ar ion laser (pump beam) on a 633 nm He-Ne laser (probe beam) when passed through the waveguide. The effect of temperature and pump intensity, polarization and chopping frequency on switching is investigated. The switching process is attributed to trans-cis-trans photoisomerization of azo dyes in the polymer host. By studying the absorption spectrum of the sample, it is shown that both pump and probe laser beams are effective on the switching process. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1208 / 1212

页数：5

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