The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system

Jessica R. Zheng; Michael Goodwin; B. Norris

doi:10.1117/12.2311897

The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system

Jessica R. Zheng, Michael Goodwin, B. Norris

Australian Astronomical Optics

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

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.

Original language	English
Title of host publication	Adaptive Optics Systems VI
Editors	Laird M. Close, Laura Schreiber, Dirk Schmidt
Place of Publication	Bellingham, Washington
Publisher	SPIE
Pages	1-11
Number of pages	11
ISBN (Electronic)	9781510619609
ISBN (Print)	9781510619593
DOIs	https://doi.org/10.1117/12.2311897
Publication status	Published - 11 Jul 2018
Event	Adaptive Optics Systems VI - Austin, Texas, United States Duration: 10 Jun 2018 → 15 Jun 2018

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	10703
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Adaptive Optics Systems VI
Country/Territory	United States
City	Austin, Texas
Period	10/06/18 → 15/06/18

Keywords

latency
adaptive optics
close loop

Access to Document

10.1117/12.2311897

Cite this

@inproceedings{77ab8229aacf45a4aff7fed64ee68225,

title = "The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system",

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.",

keywords = "latency, adaptive optics, close loop",

author = "Zheng, {Jessica R.} and Michael Goodwin and B. Norris",

year = "2018",

month = jul,

day = "11",

doi = "10.1117/12.2311897",

language = "English",

isbn = "9781510619593",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--11",

editor = "Close, {Laird M.} and Laura Schreiber and Dirk Schmidt",

booktitle = "Adaptive Optics Systems VI",

address = "United States",

note = "Adaptive Optics Systems VI ; Conference date: 10-06-2018 Through 15-06-2018",

}

Zheng, JR, Goodwin, M & Norris, B 2018, The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system. in LM Close, L Schreiber & D Schmidt (eds), Adaptive Optics Systems VI., 107035I, Proceedings of SPIE, vol. 10703, SPIE, Bellingham, Washington, pp. 1-11, Adaptive Optics Systems VI, Austin, Texas, United States, 10/06/18. https://doi.org/10.1117/12.2311897

The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system. / Zheng, Jessica R.; Goodwin, Michael; Norris, B.
Adaptive Optics Systems VI. ed. / Laird M. Close; Laura Schreiber; Dirk Schmidt. Bellingham, Washington: SPIE, 2018. p. 1-11 107035I (Proceedings of SPIE; Vol. 10703).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system

AU - Zheng, Jessica R.

AU - Goodwin, Michael

AU - Norris, B.

PY - 2018/7/11

Y1 - 2018/7/11

N2 - 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.

AB - 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.

KW - latency

KW - adaptive optics

KW - close loop

UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053528742&doi=10.1117%2f12.2311897&partnerID=40&md5=13fa6f80165cc37fb25a60980f492a6c

U2 - 10.1117/12.2311897

DO - 10.1117/12.2311897

M3 - Conference proceeding contribution

SN - 9781510619593

T3 - Proceedings of SPIE

SP - 1

EP - 11

BT - Adaptive Optics Systems VI

A2 - Close, Laird M.

A2 - Schreiber, Laura

A2 - Schmidt, Dirk

PB - SPIE

CY - Bellingham, Washington

T2 - Adaptive Optics Systems VI

Y2 - 10 June 2018 through 15 June 2018

ER -

The latency measurement of wavefront sensor camera and its impact on the performance of an adaptive optical system

Abstract

Publication series

Conference

Keywords

Access to Document

Other files and links

Fingerprint

Cite this