Dark tip-tilt sensing

Carmelo Arcidiacono; Roberto Ragazzoni; Valentina Viotto; Maria Bergomi; Jacopo Farinato; Demetrio Magrin; Marco Dima; Marco Gullieuszik; Luca Marafatto

doi:10.1117/12.2232460

27 July 2016 Dark tip-tilt sensing

Carmelo Arcidiacono, Roberto Ragazzoni, Valentina Viotto, Maria Bergomi, Jacopo Farinato, Demetrio Magrin, Marco Dima, Marco Gullieuszik, Luca Marafatto

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 99096J (2016) https://doi.org/10.1117/12.2232460
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Dark wavefront sensing in its simplest and more crude form is a quad-cell with a round spot of dark ink acting as occulting disk at the center. This sensor exhibits fainter limiting magnitude than a conventional quad-cell, providing that the size of the occulting disk is slightly smaller than the size of the spot and smaller than the residual jitter movement in closed loop. We present simulations focusing a generic Adaptive Optics system using Natural Guide Stars to provide the tip-tilt signal. We consider a jitter spectrum of the residual correction including amplitudes exceeding the dark disk size.

Citation Download Citation

Carmelo Arcidiacono, Roberto Ragazzoni, Valentina Viotto, Maria Bergomi, Jacopo Farinato, Demetrio Magrin, Marco Dima, Marco Gullieuszik, and Luca Marafatto "Dark tip-tilt sensing", Proc. SPIE 9909, Adaptive Optics Systems V, 99096J (27 July 2016); https://doi.org/10.1117/12.2232460

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