Chinese Optics Letters, 2012, 10 (4): 041402, Published Online: Dec. 1, 2011
Micro-vibrating spatial filters-induced beam positioning stability in large laser system Download: 879次
140.3425 Laser stabilization 080.2208 Fabrication, tolerancing 070.6110 Spatial filtering 120.7280 Vibration analysis
Abstract
A dynamic beam propagation model of micro-vibrating spatial filters in inertial confinement fusion (ICF) facilities is built based on the additional beam in SG-II facility. The transfer matrix is then deduced, and the sensitivities of the beam positioning to the pellet in the target area to the vibrations of every spatial filter are analyzed, which indicates that the vibrations of spatial filters in the pre-amplify zone has less effects on beam positioning stability at the target. In addition, the vibrations of spatial filters in the main amplify zone dominates the beam positioning stability of the target, especially the vibration of the spatial filter SF7.
Fang Liu, Jianqiang Zhu, Jia Xu, Quanyuan Shan, Kun Xiao, Xuejie Zhang. Micro-vibrating spatial filters-induced beam positioning stability in large laser system[J]. Chinese Optics Letters, 2012, 10(4): 041402.