EMCCD for pyramid wavefront sensor: laboratory characterization

Guido Agapito; Tommaso Mazzoni; Fabio Rossi; Alfio Puglisi; Cedric Plantet; Enrico Pinna

doi:10.1117/12.2313827

30 July 2018 EMCCD for pyramid wavefront sensor: laboratory characterization

Guido Agapito, Tommaso Mazzoni, Fabio Rossi, Alfio Puglisi, Cedric Plantet, Enrico Pinna

Proceedings Volume 10703, Adaptive Optics Systems VI; 107035R (2018) https://doi.org/10.1117/12.2313827
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

Electro-Multiplying CCDs offer a unique combination of speed, sub-electron noise and quantum efficiency. These features make them extremely attractive for astronomical adaptive optics. The SOUL project selected the Ocam2k from FLI as camera upgrade for the pyramid wavefront sensor of the LBT SCAO systems. Here we present results from the laboratory characterization of the 3 of the custom Ocam2k cameras for the SOUL project. The cameras showed very good noise (0.4e^- and 0.4 - 0.7e^- for binned modes) and dark current values (1.5e^-). We measured the camera gain and identified the dependency on power cycle and frame rate. Finally, we estimated the impact of these gain variation in the SOUL adaptive optics system. The impact on the SOUL performance resulted to be negligible.

Citation Download Citation

Guido Agapito, Tommaso Mazzoni, Fabio Rossi, Alfio Puglisi, Cedric Plantet, and Enrico Pinna "EMCCD for pyramid wavefront sensor: laboratory characterization", Proc. SPIE 10703, Adaptive Optics Systems VI, 107035R (30 July 2018); https://doi.org/10.1117/12.2313827

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