title: Zonal slope prediction for open-loop adaptive optics.
abstract: We present what we believe to be the first results that obtained with the recursive least square zonal slope predictor working on an open-loop liquid-crystal adaptive optics system operating on astronomical implementation at visible and near infrared wavelength on a 1.23 m telescope. The system produces substantially better results than a direct open-loop correction based on previous measurement. A 27% relative gain in full-width at half-maximum and 30% relative gain in Strehl ratio are obtained.
authors.affiliation: State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China. liuchao678@163.com
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.forename: Lifa
authors.initials: L
authors.lastname: Hu
authors.forename: Zhaoliang
authors.initials: Z
authors.lastname: Cao
authors.forename: Quanquan
authors.initials: Q
authors.lastname: Mu
authors.forename: Li
authors.initials: L
authors.lastname: Xuan