title: Experimental research on the influences of smoothing by spectral dispersion on the Technical Integration Line.
abstract: We describe one-dimensional smoothing by spectral dispersion (SSD) in high fluence on the Technical Integration Line. The experimental results indicate that SSD did not influence the load capacity of the laser facility. The near- and far-field analysis prove that adopting SSD could smooth the high-frequency modulations in the near field and dramatically suppress 10 μm-100 μm spatial modulations in the far field. The focal spot contrast decreases from 2.58 to 0.80 after using SSD and adaptive optics. Adopting a 0.31 nm bandwidth frequency-modulated laser pulse and a 1200 l/mm dispersion grating, experimental results proved that 97% 3ω energy passed through the laser entrance hole using a 4 m focal length wedged lens and gold foil target with an 1100 μm hole.
authors.affiliation: Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, China. zrsnowmanzr@hotmail.com
authors.forename: Rui
authors.initials: R
authors.lastname: Zhang
authors.forename: Jingqin
authors.initials: J
authors.lastname: Su
authors.forename: Jianjun
authors.initials: J
authors.lastname: Wang
authors.forename: Lanqin
authors.initials: L
authors.lastname: Liu
authors.forename: Ping
authors.initials: P
authors.lastname: Li
authors.forename: Feng
authors.initials: F
authors.lastname: Jing
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Zhang
authors.forename: Lixin
authors.initials: L
authors.lastname: Xu
authors.forename: Hai
authors.initials: H
authors.lastname: Ming