Final two-stage MOAO on-sky demonstration with CANARY

被引：7

作者：

Gendron, E. ^{[1
]}

Morris, T. ^{[2
]}

Basden, A. ^{[2
]}

Vidal, F. ^{[1
]}

Atkinson, D. ^{[7
]}

Bitene, U. ^{[2
]}

Buey, T. ^{[1
]}

Chemla, F.

Cohen, M. ^{[3
]}

Dickson, C. ^{[7
]}

Dipper, N. ^{[2
]}

Feautrier, P. ^{[4
,6
]}

Gach, J-L ^{[4
,5
]}

Gratadour, D. ^{[1
]}

Henry, D. ^{[7
]}

Huet, J-M ^{[3
]}

Morel, C. ^{[1
]}

Morris, S. ^{[2
]}

Myers, R. ^{[2
]}

Osborn, J. ^{[2
]}

Perret, D. ^{[1
]}

Reeves, A. ^{[2
]}

Rousset, G. ^{[1
]}

Sevin, A. ^{[1
]}

Stadler, E. ^{[4
,6
]}

Talbot, G. ^{[2
]}

Todd, S. ^{[7
]}

Younger, E. ^{[2
]}

机构：

[1] UPMC, Univ Paris Diderot, CNRS, LESIA,Obs Paris, 5 P Janssen, F-92190 Meudon, France

[2] Univ Durham, Ctr Adv Instrumentat, South Rd, Durham DH1 3LE, England

[3] UPMC, Univ Paris Diderot, CNRS, GEPI,Obs Paris, 5 P Janssen, F-92190 Meudon, France

[4] First Light Imaging SAS, 100 Impasse Houilleres, F-13590 Meyreuil, France

[5] Aix Marseille Univ, CNRS, LAM, UMR 7326, F-13388 Marseille, France

[6] Inst Planetol & Astrophys Grenoble, UMR 5274, BP 53, F-38041 Grenoble 9, France

[7] Royal Observ, UKATC, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

来源：

ADAPTIVE OPTICS SYSTEMS V | 2016年 / 9909卷

关键词：

tomography; ELT; instrumentation; laser guide star; adaptive optics; wave-front sensing; WAVE-FRONT SENSOR; DEFORMABLE MIRROR; LASER;

D O I：

10.1117/12.2231432

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

CANARY is an on-sky Laser Guide Star (LGS) tomographic AO demonstrator in operation at the 4.2m William Herschel Telescope (WHT) in La Palma. From the early demonstration of open-loop tomography on a single deformable mirror using natural guide stars in 2010, CANARY has been progressively upgraded each year to reach its final goal in July 2015. It is now a two-stage system that mimics the future E-ELT: a GLAO-driven woofer based on 4 laser guide stars delivers a ground-layer compensated field to a figure sensor locked tweeter DM, that achieves the final on-axis tomographic compensation. We present the overall system, the control strategy and an overview of its on-sky performance.

引用

页数：17

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