Gemini wavefront sensing subsystems

Corinne Boyer; Jacques Sebag; Francois J. Rigaut; Simon Chan; Christopher J. Carter

doi:10.1117/12.457996

4 February 2003 Gemini Wavefront Sensing Subsystems

Corinne Boyer, Jacques Sebag, Francois J. Rigaut, Simon Chan, Christopher J. Carter

Proceedings Volume 4837, Large Ground-based Telescopes; (2003) https://doi.org/10.1117/12.457996
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The Acquisition and Guiding Unit of the Gemini Telescope is able to support two major signal-processing functions: off axis active optics correction, and off axis fast guiding and focus. Both functions are performed by using up to two different Shack-Hartmann wavefront sensors working in the visible (called the Peripheral Wavefront Sensors). In addition to these wavefront sensors, each facility instrument includes its On Instrument Wavefront Sensor, which provides on or off axis fast guiding, and in some cases focus and astigmatism correction. In this paper, we will describe the different wavefront sensors and the results obtained in closed loop in terms of image quality and temporal performance.

Citation Download Citation

Corinne Boyer, Jacques Sebag, Francois J. Rigaut, Simon Chan, and Christopher J. Carter "Gemini Wavefront Sensing Subsystems", Proc. SPIE 4837, Large Ground-based Telescopes, (4 February 2003); https://doi.org/10.1117/12.457996

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