Back to Search
Start Over
Modeling coronagraphic extreme wavefront control systems for high contrast imaging in ground and space telescope missions
- Source :
- Adaptive Optics Systems VI.
- Publication Year :
- 2018
- Publisher :
- SPIE, 2018.
-
Abstract
- The challenges of high contrast imaging (HCI) for detecting exoplanets for both ground and space applications can be met with extreme adaptive optics (ExAO), a high-order adaptive optics system that performs wavefront sensing (WFS) and correction at high speed. We describe 2 ExAO optical system designs, one each for ground- based telescopes and space-based missions, and examine them using the angular spectrum Fresnel propagation module within the Physical Optics Propagation in Python (POPPY) package. We present an end-to-end (E2E) simulation of the MagAO-X instrument, an ExAO system capable of delivering 6x10-5 visible-light raw contrast for static, noncommon path aberrations without atmosphere. We present an E2E simulation of a laser guidestar (LGS) companion spacecraft testbed demonstration, which uses a remote beacon to increase the signal available for WFS and control of the primary aperture segments of a future large space telescope, providing of order 10 factor improvement for relaxing observatory stability requirements.
- Subjects :
- Wavefront
Spacecraft
business.industry
Computer science
Astrophysics::Instrumentation and Methods for Astrophysics
Physical optics
01 natural sciences
Exoplanet
010309 optics
Angular spectrum method
Optics
Spitzer Space Telescope
Observatory
0103 physical sciences
business
Adaptive optics
010303 astronomy & astrophysics
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Adaptive Optics Systems VI
- Accession number :
- edsair.doi...........0c08bc93c0a5d2e4c78ae6aad4f009e0