Optomechanical integration of the MCAO prototype testbed for EST

  1. Feijóo Amoedo, Noelia
  2. González, Francisco
  3. Montoya, Luzma
  4. Quintero Nehrkorn, Jorge
  5. Rodríguez Delgado, Horacio
  6. Martín-Hernando, Yolanda
  7. González-Cava, José Manuel 1
  8. Núñez Cagigal, Miguel A.
  9. Femenía-Castella, Bruno
  10. Chulani, Haresh Mangharam
  11. Zhang, Lanqiang
  12. Mato Martínez, Ángel
  13. Gracia Témich, Félix
  14. Quintero Noda, Carlos
  1. 1 Universidad de La Laguna
    info

    Universidad de La Laguna

    San Cristobal de La Laguna, España

    ROR https://ror.org/01r9z8p25

Actas:
Adaptive Optics Systems VIII

Año de publicación: 2022

Congreso: Adaptive Optics Systems

Tipo: Aportación congreso

DOI: 10.1117/12.2627695 GOOGLE SCHOLAR

Resumen

Once the design phase of the Multi-Conjugated Adaptive Optics (MCAO) testbed for the European Solar Telescope (EST) is completed, the system has been assembled and integrated at the Instituto de Astrofísica de Canarias (IAC). The aim of this highly configurable optical testbed is to study different solar adaptive optics solutions, including Single Conjugated Adaptive Optics (SCAO), Ground Layer Adaptive Optics (GLAO), and MCAO. The testbed will be used to evaluate the performance of different wavefront sensing and correction strategies. It consists of different subsystems that are being integrated with high precision by using optomechanical elements mostly developed at IAC. The testbed emulates a 4-m telescope with a Field of View (FoV) of 70 arcseconds. It currently operates as a SCAO configuration consisting of: an illumination system with point-like and extended source capability coupled with a configurable turbulence simulator based on Phase Screens (PS); a pupil-conjugated Deformable Mirror (DM) with 820 actuators; a high order Shack-Hartmann Wavefront Sensor (SH-WFS) with 33 subapertures across the pupil, which measures on-axis aberrations with a FoV of 10 arcseconds; and the science detector. The next steps include the integration of the elements that will provide GLAO and MCAO capabilities, such as two SH-WFSs with a FoV of 70 arcseconds, and two DMs conjugated to different atmospheric layers. This contribution describes the optomechanical components designed and the alignment procedure carried out to set up each subsystem and configuration to be studied.