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The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system
Author(s): Jessica R. Zheng; Michael Goodwin; Barnaby Norris
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Paper Abstract

Following the on-sky demonstration of our adaptive optics system test-bench on the 3.9m Anglo-Australian Telescope (AAT), we did a analysis of the system performance. It was found that the wavefront sensor camera latency to be the major limiting factor rather than the number of deformable mirror actuators or wavefront subapertures. We then designed a experimental setup to accurately measure the latency. In this paper, we present a robust method to measure the latency for two popular cameras used in the adaptive optics community, namely the Andor Zyla camera sCMOS camera and the iXON Ultra 888 EMCCD camera. From our measurements, it is shown that the latency of the two cameras can vary quite lot depending on their operation modes. We present our methodology and latency results.

Paper Details

Date Published: 11 July 2018
PDF: 11 pages
Proc. SPIE 10703, Adaptive Optics Systems VI, 107035I (11 July 2018); doi: 10.1117/12.2311897
Show Author Affiliations
Jessica R. Zheng, Macquarie Univ. (Australia)
Michael Goodwin, Macquarie Univ. (Australia)
Barnaby Norris, The Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 10703:
Adaptive Optics Systems VI
Laird M. Close; Laura Schreiber; Dirk Schmidt, Editor(s)

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