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Proceedings Paper

Research of beam smoothing technologies using CPP, SSD, and PS
Author(s): Rui Zhang; Jingqin Su; Dongxia Hu; Ping Li; Haoyu Yuan; Wei Zhou; Qiang Yuan; Yuancheng Wang; Xiaocheng Tian; Dangpeng Xu; Jun Dong; Qihua Zhu
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Paper Abstract

Precise physical experiments place strict requirements on target illumination uniformity in Inertial Confinement Fusion. To obtain a smoother focal spot and suppress transverse SBS in large aperture optics, Multi-FM smoothing by spectral dispersion (SSD) was studied combined with continuous phase plate (CPP) and polarization smoothing (PS). New ways of PS are being developed to improve the laser irradiation uniformity and solve LPI problems in indirect-drive laser fusion. The near field and far field properties of beams using polarization smoothing were studied and compared, including birefringent wedge and polarization control array. As more parameters can be manipulated in a combined beam smoothing scheme, quad beam smoothing was also studies. Simulation results indicate through adjusting dispersion directions of one-dimensional (1-D) SSD beams in a quad, two-dimensional SSD can be obtained. Experiments have been done on SG-III laser facility using CPP and Multi-FM SSD. The research provides some theoretical and experimental basis for the application of CPP, SSD and PS on high-power laser facilities.

Paper Details

Date Published: 3 February 2015
PDF: 7 pages
Proc. SPIE 9255, XX International Symposium on High-Power Laser Systems and Applications 2014, 92554B (3 February 2015); doi: 10.1117/12.2064950
Show Author Affiliations
Rui Zhang, China Academy of Engineering Physics (China)
Jingqin Su, China Academy of Engineering Physics (China)
Dongxia Hu, China Academy of Engineering Physics (China)
Ping Li, China Academy of Engineering Physics (China)
Haoyu Yuan, China Academy of Engineering Physics (China)
Wei Zhou, China Academy of Engineering Physics (China)
Qiang Yuan, China Academy of Engineering Physics (China)
Yuancheng Wang, China Academy of Engineering Physics (China)
Xiaocheng Tian, China Academy of Engineering Physics (China)
Dangpeng Xu, China Academy of Engineering Physics (China)
Jun Dong, China Academy of Engineering Physics (China)
Qihua Zhu, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 9255:
XX International Symposium on High-Power Laser Systems and Applications 2014
Chun Tang; Shu Chen; Xiaolin Tang, Editor(s)

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