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Proceedings Paper

Piston phasing in segmented telescopes
Author(s): Junlun Jiang; Weirui Zhao; Baoyun Sun
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Paper Abstract

The next generation of optical telescope will provide a high-resolution imaging of celestial objects by using synthetic aperture. Measuring the piston error between the segments of the synthetic aperture becomes more and more important. We present a piston error detection method based on analyzing the intensity distribution of the image plane, which is adaptable to any segmented and deployable primary mirror telescope. The method’s capture range is the coherence length of the light source used in the imaging system, and the accuracy is of nanoscale. Experiment has been carried out to validate the feasibility of this method.

Paper Details

Date Published: 19 October 2016
PDF: 9 pages
Proc. SPIE 10154, Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation, 101541P (19 October 2016); doi: 10.1117/12.2247051
Show Author Affiliations
Junlun Jiang, Beijing Institute of Technology (China)
Weirui Zhao, Beijing Institute of Technology (China)
Baoyun Sun, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 10154:
Advanced Optical Design and Manufacturing Technology and Astronomical Telescopes and Instrumentation
Min Xu; Ji Yang, Editor(s)

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