Laser driver beam combination for fast ignition

yang yuchuan; jing feng; li fuquan; wang xiao; huang xiaojun; feng bin; luo hui

Volume 23 Issue 03

Mar. 2011

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Abstract

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Article Navigation > High Power Laser and Particle Beams > 2011 > 23(03): 0-

ning cheng, yang zhen hua, ding ning. Process of radiation magnetohydrodynamics in Al wirearray Zpinch[J]. High Power Laser and Particle Beams, 2002, 14.

Citation:

yang yuchuan, jing feng, li fuquan, et al. Laser driver beam combination for fast ignition[J]. High Power Laser and Particle Beams, 2011, 23.

ning cheng, yang zhen hua, ding ning. Process of radiation magnetohydrodynamics in Al wirearray Zpinch[J]. High Power Laser and Particle Beams, 2002, 14.

Citation:

yang yuchuan, jing feng, li fuquan, et al. Laser driver beam combination for fast ignition[J]. High Power Laser and Particle Beams, 2011, 23.

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Laser driver beam combination for fast ignition

1.
Research Center of Laser Fusion,CAEP,P.O.Box 919-988,Mianyang 621900,China;
2.
College of Opto-Electronic Science and Engineering,National University of Defense Technology,Changsha 410073,China

Publish Date: 2011-03-15

Abstract

Abstract

Based on the estimated parameters of fast ignition, the requirements for laser-beam power intensity and energy are used to analyze the possibility of realizing fast ignition by coherent combination and noncoherent combination. The practical distorted wavefront is considered to analyze the farfield focal spot. Non-coherent combination needs more beams for energy requirement and to limit angle drifting in ±2 μrad through improving laser driver’s stability. Coherent combination is beneficial for achieving smaller focal spot and higher power intensity, simultaneously reducing the requirement of energy, but single beam wavefront correction can not improve the power intensity in this method, which leads to combined wavefront correction of the total clear aperture with complex monitoring a
- fast ignition,
- non-coherent combination,
- coherent combination,
- wavefront error,
- power intensity

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