Precise diagnosis and control of 1ω laser far-field spot intensity distribution on ICF driver

Author

Tang, Shunxing ; Ouyang, Xiaoping ; Huang, Kuixi ; Zhu, Baoqiang ; Lin, Zunqi

Author_Institution

Shanghai Inst. of Opt. & Fine Mech., Chinese Acad. of Sci., Shanghai, China

fYear

2009

fDate

30-3 Aug. 2009

Firstpage

1

Lastpage

2

Abstract

This paper elucidated how to evaluate wavefront property by precisely diagnose far field distribution. A Phi350 mm far field diagnostic device was designed to be applied on the 9th beam of Shenguang-II. The performance in 2007 indicated that 70% of total energy was focused in a 5 times of the diffraction limit diameter circle, while 95% of total energy was focused in a 13 times of the diffraction limit diameter circle.

Keywords

aberrations; laser beams; light diffraction; optical focusing; 1omega laser far-field spot intensity distribution control; ICF driver; Shenguang-II 9th beam; diffraction limit diameter circle; far field distribution diagnosis; high intensity laser; inertial confinement fusion; optical focusing; wave-aberrations; wavefront property; Control systems; Diffraction; Laser beams; Laser fusion; Laser theory; Lenses; Optical control; Optical devices; Optical interferometry; Optical modulation; High intensity laser; ICF; diagnostic; far field distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers & Electro Optics & The Pacific Rim Conference on Lasers and Electro-Optics, 2009. CLEO/PACIFIC RIM '09. Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-3829-7

Electronic_ISBN

978-1-4244-3830-3

Type

conf

DOI

10.1109/CLEOPR.2009.5292403

Filename

5292403