Share Email Print

Proceedings Paper

Constraining the GLAO parameter space with turbulence profile models
Author(s): Jeff A. Stoesz
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Nature provides reduced turbulence at intermediate altitudes and as a result the mean image quality of a ground layer adaptive optics (GLAO) corrected field degrades slowly with increasing diameter. If this function has a shallow slope all the way out to the maximum seeing limited field of view of the telescope then surveys at that telescope may significantly benefit from GLAO. Using published optical turbulence profile models for Cerro Pachon we show that the GLAO gains require that the full seeing limited field of view be corrected for two example telescopes, each attempting two example science cases. We also show that using only four sodium laser guide stars the very wide GLAO system with optimal actuator and subaperture pitch will not be affected by servo lag and wavefront sensor noise.

Paper Details

Date Published: 27 June 2006
PDF: 10 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62724M (27 June 2006); doi: 10.1117/12.672519
Show Author Affiliations
Jeff A. Stoesz, National Research Council of Canada, Herzberg Institute of Astrophysics (Canada)
Univ. of Victoria (Canada)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?