Continuous-phase elements can improve laser beam quality

Ram Oron

doi:10.1364/OL.25.000939

2000-07-01

PRE

DOI：10.1364/OL.25.000939

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摘要

En 中文

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.

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期刊

Optics Letters

IF:

3.3

论文数:

4.0W

被引数:

7.6W

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