Simulation and experimental investigation on the temperature-induced distortion characteristics of the hybrid connection structure deformable mirror.
作者： Qiao Xue , Lei Huang , Yamin Zheng , Deen Wang , Wanjun Dai
DOI: 10.1364/OE.403001
关键词: Compensation (engineering) 、 Piezoelectricity 、 Wavefront 、 Laser beam quality 、 Optics 、 Deformable mirror 、 Adaptive optics 、 Distortion 、 Finite element method 、 Materials science
摘要: The stacked array piezoelectric deformable mirror (DM) used in adaptive optics (AO) systems usually has actuator-corresponding high-frequency temperature-induced distortion (TID) on its surface when the working temperature is different from design temperature, which harmful to beam quality. To effectively eliminate TID, we introduce a hybrid connection structure (H-DM), adopts magnetic besides conventional adhesive structure. TID characteristics of H-DM are analyzed using finite element method, and wavefront compensation capability novel also investigated simulation. In experiment, initial shape lab-manufactured measured. experimental results show that good shape, no exists environment changes. Thus it can be seen could well corrected by itself, thereby environmental adaptability DM improved substantially.
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