SRAO: optical design and the dual-knife-edge WFS

Carl Ziegler; Nicholas M. Law; Andrei Tokovinin

doi:10.1117/12.2231297

27 July 2016 SRAO: optical design and the dual-knife-edge WFS

Carl Ziegler, Nicholas M. Law, Andrei Tokovinin

Proceedings Volume 9909, Adaptive Optics Systems V; 99093Z (2016) https://doi.org/10.1117/12.2231297
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Southern Robotic Adaptive Optics (SRAO) instrument will bring the proven high-efficiency capabilities of Robo-AO to the Southern-Hemisphere, providing the unique capability to image with high-angular-resolution thousands of targets per year across the entire sky. Deployed on the modern 4.1m SOAR telescope located on Cerro Tololo, the NGS AO system will use an innovative dual-knife-edge wavefront sensor, similar to a pyramid sensor, to enable guiding on targets down to V=16 with diffraction limited resolution in the NIR. The dual-knife-edge wavefront sensor can be up to two orders of magnitude less costly than custom glass pyramids, with similar wavefront error sensitivity and minimal chromatic aberrations. SRAO is capable of observing hundreds of targets a night through automation, allowing confirmation and characterization of the large number of exoplanets produced by current and future missions.

Citation Download Citation

Carl Ziegler, Nicholas M. Law, and Andrei Tokovinin "SRAO: optical design and the dual-knife-edge WFS", Proc. SPIE 9909, Adaptive Optics Systems V, 99093Z (27 July 2016); https://doi.org/10.1117/12.2231297

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available