
Proceedings Paper
Co-phase error correction of the optical sparse aperture systemFormat | Member Price | Non-Member Price |
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Paper Abstract
Optical sparse-aperture system can be designed to obtain high resolution in astronomical object
imaging with several independent small-aperture telescopes. However, the images from separated
telescopes are not only overlapped but also have same phase. Ordinarily, the phase of each sub-aperture
can be obtained by wave-front sensing technology, such as phase retrieval algorithms, but this method
requires more than one CCD and interfere the wave front. In this work, we use the differences between
PSFs from each sub-array to get the type and size of the co-phase error. Finally, submit the results to
mechanical system as a feedback for phase retrieval. We used Golay-3 system as an example to verify
the above conclusions. The output is consistent with the pre-set value within the allowable error. The
results show that this method is feasible and reasonable.
Paper Details
Date Published: 30 November 2009
PDF: 7 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 750626 (30 November 2009); doi: 10.1117/12.838074
Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)
PDF: 7 pages
Proc. SPIE 7506, 2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 750626 (30 November 2009); doi: 10.1117/12.838074
Show Author Affiliations
Dayong Wang, Beijing Univ. of Technology (China)
Juan Zhao, Beijing Univ. of Technology (China)
Published in SPIE Proceedings Vol. 7506:
2009 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Kimio Tatsuno, Editor(s)
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