INVESTIGATION OF COMPUTER-GENERATED DIFFRACTIVE BEAM SHAPERS FOR FLATTENING OF SINGLE-MODAL CO2-LASER BEAMS

被引：63

作者：

DUPARRE, M ^{[1
]}

GOLUB, MA ^{[1
]}

LUDGE, B ^{[1
]}

PAVELYEV, VS ^{[1
]}

SOIFER, VA ^{[1
]}

USPIENIEV, GV ^{[1
]}

VOLOTOVSKII, SG ^{[1
]}

机构：

[1] IMAGE PROC SYST INST,SAMARA 443001,RUSSIA

来源：

APPLIED OPTICS | 1995年 / 34卷 / 14期

关键词：

DIFFRACTIVE OPTICS; BINARY OPTICS; COMPUTER-GENERATED HOLOGRAMS; BEAM SHAPERS; MEASUREMENT OF INTENSITY PATTERNS; DIFFRACTION EFFICIENCY;

D O I：

10.1364/AO.34.002489

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A full cycle was realized of the photolithographic development and detailed testing of a diffractive optical element that transforms the diverging Gaussian beams of CO2 lasers into a uniformly filled-in rectangle. The zone feature size of the beam shaper, the diffractive efficiency and accuracy, the focus depth, and the stability with respect to the size and the divergence of incident Gaussian beams are studied by computer modeling. Calculated flattop intensity distributions are presented in the same form of gray-level pictures and three-dimensional plots as the corresponding results measured by an IR camera.

引用

页码：2489 / 2497

页数：9

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