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Ren D Q, Zhang T Y, Wang G. An optimized high-performance technique for adaptive optics static aberration correction[J]. Opto-Electron Eng, 2022, 49(3): 210319. doi: 10.12086/oee.2022.210319
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An optimized high-performance technique for adaptive optics static aberration correction
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Abstract
For adaptive optics (AO) systems, Non-Common Path Aberration (NCPA) is considered as a critical issue to limit its diffraction-limited imaging performance and the static aberration will inevitably be introduced in the common path of the AO system inevitably at the same time, especially when it is coupled to telescopes intended for scientific observation. This paper presents an optimized focal-plane-based static aberration correction technique, which can copy a perfect point-spread function (PSF) generated by a single-mode fiber to the AO system via iteration optimization algorithm and static aberration in the AO system can be rapidly corrected. Compared with the focal-plane approach we proposed before, this optimized approach can achieve a global optimization result rapidly and deliver better performance when the AO system has a large initial static wavefront error. This technique can be implemented more conveniently in the AO system than other traditional correction methods for achieving an extremely high imaging performance in astronomy or other fields.-
Keywords:
- adaptive optics /
- aberration correction /
- high angular resolution
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References
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Ren D Q, Zhang T Y, Wang G. An optimized high-performance technique for adaptive optics static aberration correction[J]. Opto-Electron Eng, 2022, 49(3): 210319. doi: 10.12086/oee.2022.210319
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Figure 1.
The schematic diagram of AO system for correction
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Figure 2.
The real experimental optical path of AO system for the NCPA measurement and correction
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Figure 3.
Initial focal plane PSF
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Figure 4.
Reference PSF and PSFs after correction.
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Figure 5.
Metric function evolution as a function of iteration steps
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Figure 6.
PSF corrected by using Jo
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Figure 7.
PSF corrected by using Jlg
