Continuous-phase elements can improve laser beam quality

被引：62

作者：

Oron, R ^{[1
]}

Davidson, N

Friesem, AA

Hasman, E

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

[2] Technion Israel Inst Technol, Fac Mech Engn, Opt Engn Grp, IL-32000 Haifa, Israel

来源：

OPTICS LETTERS | 2000年 / 25卷 / 13期

关键词：

D O I：

10.1364/OL.25.000939

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Siegman [Opt. Lett. 18, 675 (1993)] showed that binary-phase plates cannot improve laser beam quality. We demonstrate that continuous spiral phase elements can improve the quality of beams that originate from a laser operating with a pure high-order transverse mode. A theoretical analysis is presented, along with experimental results obtained with a CO2 laser. The results reveal that a nearly optimal Gaussian output beam can be obtained with only a small decrease in the output power. (C) 2000 Optical Society of America.

引用

页码：939 / 941

页数：3

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