Performance analysis of a Shack-Hartman wavefront sensor with variable subaperture pixels

Ang Zhang; Changhui Rao; Yudong Zhang; Wenhan Jiang

doi:10.1117/12.549403

25 October 2004 Performance analysis of a Shack-Hartman wavefront sensor with variable subaperture pixels

Ang Zhang, Changhui Rao, Yudong Zhang, Wenhan Jiang

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.549403
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

The major error source of Shack-Hartmann wavefront sensor consists of the photon noise, the readout noise, and the sampling error. In this paper, the measurement error of Shack-Hartmann wavefront sensor with variable subaperture pixels is analyzed under the consideration of various threshold values and detecting dynamic ranges. A generalized expression, which is used for fitting the sampling error of Shack-Hartmann wavefront sensor with variable subaperture pixels, is presented. The computational results and the experimental results of the measurement error of Shack-Hartmann wavefront sensor with different pixels per subaperture are also given.

Citation Download Citation

Ang Zhang, Changhui Rao, Yudong Zhang, and Wenhan Jiang "Performance analysis of a Shack-Hartman wavefront sensor with variable subaperture pixels", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.549403

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