High-order adaptive optical system for big bear solar observatory

Leonid V. Didkovsky; Alexander Dolgushyn; William Marquette; Jeff Nenow; John Varsik; Philip R. Goode; Steven L. Hegwer; Deqing Ren; Steve Fletcher; Kit Richards; Thomas Rimmele; Carsten J. Denker; Haimin Wang

doi:10.1117/12.471341

11 February 2003 High-order adaptive optical system for Big Bear Solar Observatory

Leonid V. Didkovsky, Alexander Dolgushyn, William Marquette, Jeff Nenow, John Varsik, Philip R. Goode, Steven L. Hegwer, Deqing Ren, Steve Fletcher, Kit Richards, Thomas Rimmele, Carsten J. Denker, Haimin Wang

Author Affiliations +

Proceedings Volume 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics; (2003) https://doi.org/10.1117/12.471341
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

We present a high-order adaptive optical system for the 26-inch vacuum solar telescope of Big Bear Solar Observatory. A small elliptical tip/tilt mirror is installed at the end of the existing coude optical path on the fast two-axis tip/tilt platform with its resonant frequency around 3.3 kHz. A 77 mm diameter deformable mirror with 76 subapertures as well as wave-front sensors (correlation tracker and Shack-Hartman) and scientific channels for visible and IR polarimetry are installed on an optical table. The correlation tracker sensor can detect differences at 2 kHz between a 32×32 reference frame and real time frames. The WFS channel detects 2.5 kHz (in binned mode) high-order wave-front atmosphere aberrations to improve solar images for two imaging magnetographs based on Fabry-Perot etalons in telecentric configurations. The imaging magnetograph channels may work simultaneously in a visible and IR spectral windows with FOVs of about 180×180 arc sec, spatial resolution of about 0.2 arc sec/pixel and SNR of about 400 and 600 accordingly for 0.25 sec integration time.

Citation Download Citation

Leonid V. Didkovsky, Alexander Dolgushyn, William Marquette, Jeff Nenow, John Varsik, Philip R. Goode, Steven L. Hegwer, Deqing Ren, Steve Fletcher, Kit Richards, Thomas Rimmele, Carsten J. Denker, and Haimin Wang "High-order adaptive optical system for Big Bear Solar Observatory", Proc. SPIE 4853, Innovative Telescopes and Instrumentation for Solar Astrophysics, (11 February 2003); https://doi.org/10.1117/12.471341

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available