Investigation of diffractive optical element for shaping a Gaussian beam into a ring-shaped pattern

被引：13

作者：

Li, Q ^{[1
]}

Gao, HD ^{[1
]}

Dong, YH ^{[1
]}

Shen, ZC ^{[1
]}

Wang, Q ^{[1
]}

机构：

[1] Harbin Inst Technol, Inst Optoelect, Harbin, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 1998年 / 30卷 / 08期

关键词：

diffractive optical element (DOE); ring-shaped beam; YG algorithm;

D O I：

10.1016/S0030-3992(99)00002-X

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

To convert a given single-mode He-Ne laser beam into a ring-shaped intensity distribution, a diffractive optical element with 16 levels was designed by YG amplitude-phase retrieval and iteration algorithm. This beam shaper is investigated experimentally and compared with the results of the computer design. The results show good conformity, and the measured diffraction efficiency is 87.2%. In addition, the diffractive effect is observed when the distance between diffractive optical element and CCD is changed. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：511 / 514

页数：4

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