First steps in the development of a piston sensor for large aperture space telescopes

Géraldine Guerri; Stéphane Roose; Yvan Stockman; Alexandra Mazzoli; Jean Surdej; Jean-Marc Defise

doi:10.1117/12.857247

10 August 2010 First steps in the development of a piston sensor for large aperture space telescopes

Géraldine Guerri, Stéphane Roose, Yvan Stockman, Alexandra Mazzoli, Jean Surdej, Jean-Marc Defise

Proceedings Volume 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave; 773154 (2010) https://doi.org/10.1117/12.857247
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

Nowadays spaceborne missions for astronomy or Earth imaging need high resolution observation which implies the development of large aperture telescopes. This can be achieved by multi-aperture telescopes or large segmented telescopes. One of the major issues is the phasing of the sub-apertures or the segments of such telescopes. A cophasing sensor is therefore mandatory to achieve the ultimate resolution of these telescopes. In this framework, Liège Space Center (CSL) concern is the development of a compact cophasing sensor to phase new large lightweight segmented mirrors for future space telescopes. The sensor concept has its origins in new phase retrieval algorithms which have been recently developed. In this paper, we outline the concept and the experimental validation results of our piston sensor breadboard which is currently under development in our laboratory. Finally, future prospects and further developments of our experiment are presented.

Citation Download Citation

Géraldine Guerri, Stéphane Roose, Yvan Stockman, Alexandra Mazzoli, Jean Surdej, and Jean-Marc Defise "First steps in the development of a piston sensor for large aperture space telescopes", Proc. SPIE 7731, Space Telescopes and Instrumentation 2010: Optical, Infrared, and Millimeter Wave, 773154 (10 August 2010); https://doi.org/10.1117/12.857247

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