Scalable analog wavefront sensor with subpixel resolution

Michael Wilcox

doi:10.1117/12.672152

28 June 2006 Scalable analog wavefront sensor with subpixel resolution

Michael Wilcox

Proceedings Volume 6272, Advances in Adaptive Optics II; 62723G (2006) https://doi.org/10.1117/12.672152
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

Abstract

Standard Shack-Hartman wavefront sensors use a CCD element to sample position and distortion of a target or guide star. Digital sampling of the element and transfer to a memory space for subsequent computation adds significant temporal delay, thus, limiting the spatial frequency and scalability of the system as a wavefront sensor. A new approach to sampling uses information processing principles in an insect compound eye. Analog circuitry eliminates digital sampling and extends the useful range of the system to control a deformable mirror and make a faster, more capable wavefront sensor.

Citation Download Citation

Michael Wilcox "Scalable analog wavefront sensor with subpixel resolution", Proc. SPIE 6272, Advances in Adaptive Optics II, 62723G (28 June 2006); https://doi.org/10.1117/12.672152

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