Wavefront Detection and Compensation Technology Based on Signal Light Nutation Under Atmospheric Turbulence

Wavefront Detection and Compensation Technology Based on Signal Light Nutation Under Atmospheric Turbulence

The Shack-Hartmann wavefront sensor restricts the dynamic range and detection accuracy of wavefront detection due to the limitation of the lens array aperture. This study proposes a system using signal light nutation to detect wavefront distortion, providing high spatial resolution and detection dyn...

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Veröffentlicht in:IEEE communications letters 2021-10, Vol.25 (10), p.3340-3344
Hauptverfasser: Yan, Xu, Cao, Changqing, Zhang, Wenrui, Zeng, Xiaodong, Feng, Zhejun, Wu, Zengyan, Wang, Ting
Format: Artikel
Sprache:eng
Schlagworte:
Atmospheric turbulence
Atmospheric waves
Charge coupled devices
Distortion
Dynamic range
Image reconstruction
Laser beams
Nutation
Optical communications
Optical distortion
Shack-Hartmann sensors
Spatial resolution
Wave front sensors
Wave fronts
wavefront detection
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Beschreibung
Zusammenfassung:The Shack-Hartmann wavefront sensor restricts the dynamic range and detection accuracy of wavefront detection due to the limitation of the lens array aperture. This study proposes a system using signal light nutation to detect wavefront distortion, providing high spatial resolution and detection dynamic range. Simulations show that the root mean square (RMS) and mixing efficiency of the compensated wavefront are optimized. In the case of strong turbulence, the mixing efficiency is increased by nearly 105 times, and the RMS is reduced to the original value of 0.048.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2021.3100701