Modeling coronagraphic extreme wavefront control systems for high contrast imaging in ground and space telescope missions

DOI DOI HANDLE 被引用文献1件 参考文献18件

書誌事項

公開日
2018-07-18
資源種別
journal article
DOI
  • 10.1117/12.2313780
  • 10.48550/arxiv.1807.04729
公開者
SPIE

説明

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 two 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 6$\times10^{-5}$ visible-light raw contrast for static, noncommon path aberrations without atmosphere. We present 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 on order of a factor of ten factor improvement for relaxing observatory stability requirements. The LGS E2E simulation provides an easily adjustable model to explore parameters, limits, and trade-offs on testbed design and characterization.

11 pages, 12 figures, SPIE Astronomical Telescopes and Instrumentation 2018

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (18)*注記

もっと見る

関連プロジェクト

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ