Atmospheric Turbulence Characterization with the Keck Adaptive Optics Systems. I. Open-Loop Data
Applied Optics, Vol. 42, Issue 19, pp. 3705-3720 (2003)
http://dx.doi.org/10.1364/AO.42.003705
Acrobat PDF (294 KB)
Abstract
We present a detailed investigation of different methods of the characterization of atmospheric turbulence with the adaptive optics systems of the W. M. Keck Observatory. The main problems of such a characterization are the separation of instrumental and atmospheric effects and the accurate calibration of the devices involved. Therefore we mostly describe the practical issues of the analysis. We show that two methods, the analysis of differential image motion structure functions and the Zernike decomposition of the wave-front phase, produce values of the atmospheric coherence length r0 that are in excellent agreement with results from long-exposure images. The main error source is the calibration of the wave-front sensor. Values determined for the outer scale ℒ0 are consistent between the methods and with typical ℒ0 values found at other sites, that is, of the order of tens of meters.
© 2003 Optical Society of America
[Optical Society of America ]
OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
Citation
Matthias Schöck, David Le Mignant, Gary A. Chanan, Peter L. Wizinowich, and Marcos A. van Dam, "Atmospheric Turbulence Characterization with the Keck Adaptive Optics Systems. I. Open-Loop Data," Appl. Opt. 42, 3705-3720 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-19-3705
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Theory of branch-point detection and its implementation (JOSAA)
- Measuring wind speeds and turbulence with a wave-front sensor (OL)
- Rapid and robust detection of branch points from wave-front gradients (OL)
- Efficient phase estimation for large-field-of-view adaptive optics (OL)
- Incorporating Higher-Order Modal Measurements in Tilt Estimation: Natural and Laser Guide Star Applications (AO)
Related Conference Papers
- Efficient, Adaptive Wave-Front Control for High-Order Adaptive Optics
- Linear Systems Modeling and Evaluation of Adaptive Optics in the Spatial Frequency Domain
- A Software Framework for Fast Adaptive Optics Control with Atmospheric Tomography
- Solving Propagation Problems in Turbulence Using Filter Functions and Mellin Transforms
- Optimization of the Pre-Compensation of Non-Common Path Aberrations for Adaptive Optics Systems
« Previous Article | Next Article »
OSA is a member of 