High-quality near-field beam achieved in a high-power laser based on SLM adaptive beam-shaping system

Sensen Li, Yulei Wang, Zhiwei Lu, Lei Ding, Pengyuan Du, Yi Chen, Zhenxing Zheng, Dexin Ba, Yongkang Dong, Hang Yuan, Zhenxu Bai, Zhaohong Liu, Can Cui

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

We demonstrate a high-power laser system with a high-quality near-field beam by using a liquid-crystal spatial light modulator (SLM). An efficient spatial beam shaping algorithm is discussed which can improve the output nearfield beam quality effectively. Both small-signal and large-signal amplification situation of the laser are considered in the beam shaping algorithm. The experimental results show that the near field fluence modulation of output is improved from 1.99:1 to 1.26:1 by using the liquidcrystal SLM. Obvious uniform spatial fluence distribution and near-field beam quality improvement are observed.

Original languageEnglish
Pages (from-to)681-689
Number of pages9
JournalOptics Express
Volume23
Issue number2
DOIs
Publication statusPublished - 26 Jan 2015
Externally publishedYes

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