Optical design of the adaptive optics system for DAG, the new 4 m Turkish telescope

Bouxin A., Jolissaint L., Keskin O., Yeşilyaprak C., Spano P.

Adaptive Optics Systems VII 2020, Virtual, Online, Amerika Birleşik Devletleri, 14 - 22 Aralık 2020, cilt.11448 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 11448
  • Doi Numarası: 10.1117/12.2562310
  • Basıldığı Şehir: Virtual, Online
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Anahtar Kelimeler: Adaptive Optics System, Atmospheric Dispersion Compensator, DAG, Optical design, PyZDDE, Zemax model, Zemax to python
  • Atatürk Üniversitesi Adresli: Evet

Özet

© 2020 SPIE.We present the design of the Adaptive Optics System for the new Turkish 4-m telescope (DAG). The AO will use a pyramid WFS, with a double prism and a no noise EM-CCD camera to allow for oversampling of the pupil images and a relaxation of the prism manufacturing tolerances. In order to use the high modal resolution of the P-WFS allowed by the adjustment of the modulation angle, we implement a high order deformable mirror with 468 actuators, which will permit to use the system in extreme AO correction mode. The P-WFS optical design has been largely inspired by NFIRAOS truth WFS. The number of optical surfaces has been reduced to the bare minimum. An atmospheric dispersion compensator is introduced around the tip-tilt modulation mirror. In this proceeding, we present the detail of the optical design steps for all the components of the system.