Two-dimensional non-spatial filtering based on holographic Bragg gratings

被引：0

作者：

何焰蓝 ^{[1
]}

郑浩斌 ^{[1
]}

谭吉春 ^{[1
]}

丁道一 ^{[1
]}

郑光威 ^{[1
]}

王晓东 ^{[2
]}

王逍 ^{[2
]}

机构：

[1] Science College,National University of Defense Technology

[2] Research Center of Laser Fusion,China Academy of Engineering Physics

来源：

Chinese Physics B | 2010年 / 19卷 / 07期

基金：

中国国家自然科学基金;

关键词：

spatial filter; Bragg gratings; two-dimensional filtering; polarisation;

D O I：

暂无

中图分类号：

O438.1 [全息光学];

学科分类号：

070207 ; 0803 ;

摘要：

The filter made up of two gratings performs as a two-dimensional non-spatial filtering.This paper reports that the volume Bragg gratings are fabricated by interfering two collimated coherent laser beams in photopolymer.Diffraction efficiency of a single grating is up to 78% in Bragg’s condition,then a two-dimensional non-spatial filter,which consists of two volume Bragg gratings and a half-wave plate,enables the laser beam filtered in two dimensions with the diffraction efficiency of 54%.The Bragg’s condition and effect of polarisation on performances of the two-dimension filter are also discussed.

引用

页码：331 / 336

页数：6

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