title: Eliminating the longitudinal piston error between tiled gratings by angle tuning.
abstract: In a tiled-grating system, it is difficult to make two tiled gratings strictly coplanar. We propose and demonstrate for the first time, as far as we know, a simple method by which the longitudinal piston error between two tiled gratings can be reduced below lambda/10, close to the influence of the environmental factors. The alignment precision of the method increases with the tiled-grating system's stability to environmental factors.
authors.affiliation: Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang, Sichuan 621900, China. zuoyanlei@tsinghua.org.cn
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Zuo
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Wei
authors.forename: Xiao
authors.initials: X
authors.lastname: Wang
authors.forename: Qihua
authors.initials: Q
authors.lastname: Zhu
authors.forename: Rui
authors.initials: R
authors.lastname: Ren
authors.forename: Zheng
authors.initials: Z
authors.lastname: Huang
authors.forename: Hongjie
authors.initials: H
authors.lastname: Liu
authors.forename: Chuntong
authors.initials: C
authors.lastname: Ying