Research on the surface shape testing and close-loop performance of a deflectometry system

The Shack-Hartmann wavefront sensor (SHWFS) is widely used in an adaptive optics (AO) system to measure the wavefront. The measurement accuracy of the SHWFS is limited by the micro-lens array, which is a core component of it. A deflectometry system (DS) is constructed to offer a high resolution measurement for the AO system, which could be used to test the surface shape of the deformable mirror (DM). The configuration and principle of the DS are presented. The surface shape testing and close-loop performance are analyzed in simulation and experiment. Results show that the DS has good ability in surface shape testing and close-loop correction.

[1]  Oliver Sawodny,et al.  Deformable mirrors for intra-cavity use in high-power thin-disk lasers. , 2017, Optics express.

[2]  M. le Louarn,et al.  Laser guide star wavefront sensing for ground-layer adaptive optics on extremely large telescopes. , 2011, Applied optics.

[3]  Jianxin Shen,et al.  High-resolution retinal imaging with micro adaptive optics system. , 2011, Applied optics.

[4]  Helena Jelinkova,et al.  Design and optimization of an adaptive optics system for a high-average-power multi-slab laser (HiLASE). , 2014, Applied optics.

[5]  Steven M. Jones,et al.  Adaptive-optics optical coherence tomography for high-resolution and high-speed 3 D retinal in vivo imaging , 2005 .

[6]  Hee Joo Choi,et al.  Close-loop performance of a high precision deflectometry controlled deformable mirror (DCDM) unit for wavefront correction in adaptive optics system , 2017 .

[7]  Thomas Berkefeld,et al.  Adaptive optics development at the German solar telescopes , 2010 .

[8]  J. Girkin,et al.  Practical implementation of adaptive optics in multiphoton microscopy. , 2003, Optics express.

[9]  Licheng Sun,et al.  Theoretical and experimental research on temperature-induced surface distortion of deformable mirror. , 2018, Optics express.

[10]  Q. Mu,et al.  DM/LCWFC based adaptive optics system for large aperture telescopes imaging from visible to infrared waveband. , 2016, Optics express.

[11]  Lirong Wang,et al.  Software configurable optical test system: a computerized reverse Hartmann test. , 2010, Applied optics.

[12]  Licheng Sun,et al.  Intracavity deformable mirror for beam quality improvement and power enhancement of a passively Q-switched laser. , 2018, Optics express.