Study on near-field image extraction in high power lasers

Lei Ding, Sensen Li, Luoxian Zhou, Zhiwei Lu*, Yulei Wang, Tan Tan, Hang Yuan, Zhenxu Bai, Can Cui

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


The accurate measurement of high-power laser near-field fluence distribution leads to a correct assessment of the output beam quality. In this paper, the nearfield fluence distribution is measured by a scientific-grade CCD in a hundred-Joule-level laser system. The experimental method of filtering the background noise in original near-field image is studied. Compared with the other method of filtering background noise, the experimental method is simple and accurate. Results show that this method can measure and correctly extract the image of near-field distribution in high-power lasers.

Original languageEnglish
Pages (from-to)4495-4497
Number of pages3
Issue number10
Publication statusPublished - 1 May 2016
Externally publishedYes


  • High power laser
  • Image extraction
  • Near-field intensity
  • Scientific-grade CCD


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