An end-to-end Fresnel propagation model for SPEED: PIAACMC implementation and performance

Mathilde Beaulieu, Patrice Martinez, Lyu Abe, Olivier Guyon, Carole Gouvret, Julien Dejonghe, Oliver Preis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


Future extremely large telescopes, equipped with high-contrast instruments targeting very small Inner Working Angle, will provide the requisite resolution for detecting exoplanets in the habitable zone around M-stars. However, the ELT segmented pupil shape is unfavourable to high-contrast imaging. In this context, the SPEED project aims to develop and test solutions for high contrast with unfriendly apertures. SPEED will combine a PIAACMC coronagraph and two deformable mirrors for the wavefront shaping. In this paper, we describe an end-to-end model of SPEED, including the Fresnel wavefront propagation, the PIAACMC implementation and the dark hole algorithm, and present a statistical analysis of the predicted performance.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Telescopes VII
EditorsHeather K. Marshall, Jason Spyromilio
ISBN (Electronic)9781510619531
StatePublished - 2018
EventGround-Based and Airborne Telescopes VII 2018 - Austin, United States
Duration: Jun 10 2018Jun 15 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherGround-Based and Airborne Telescopes VII 2018
Country/TerritoryUnited States


  • Fresnel propagation
  • High contrast
  • deformable mirror
  • small separation
  • wavefront control

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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