Zonal slope prediction for open-loop adaptive optics |
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Authors: | Liu Chao Hu Lifa Cao Zhaoliang Mu Quanquan Xuan Li |
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Institution: | State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, Jilin, China. liuchao678@163.com |
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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. |
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