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

被引：61

作者：

Li, Sensen ^{[1
]}

Wang, Yulei ^{[1
]}

Lu, Zhiwei ^{[1
]}

Ding, Lei ^{[1
,2
]}

Du, Pengyuan ^{[1
]}

Chen, Yi ^{[1
]}

Zheng, Zhenxing ^{[1
]}

Ba, Dexin ^{[1
]}

Dong, Yongkang ^{[1
]}

Yuan, Hang ^{[1
]}

Bai, Zhenxu ^{[1
]}

Liu, Zhaohong ^{[1
]}

Cui, Can ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150001, Peoples R China

[2] China Acad Engn Phys, Reseach Ctr Laser Fus, Mianyang 621900, Peoples R China

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 02期

基金：

中国国家自然科学基金;

关键词：

NATIONAL IGNITION FACILITY; SPATIAL LIGHT-MODULATOR; FUSED-SILICA OPTICS; HIGH-ENERGY; DAMAGE GROWTH; FUSION; PERFORMANCE; PHASE; LMJ;

D O I：

10.1364/OE.23.000681

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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. (C) 2015 Optical Society of America

引用

页码：681 / 689

页数：9

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