Tomographic alignment algorithm for an extremely large three-mirror telescope: invisible modes
Applied Optics, Vol. 49, Issue 33, pp. 6395-6401 (2010)
http://dx.doi.org/10.1364/AO.49.006395
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Abstract
We analyze the optical effects due to distortions of a three-mirror telescope that is sufficiently large that all three mirrors must be actively controlled. Numerical experiments on telescopes with both monolithic and segmented primary mirrors reveal the existence of telescope misalignment configurations (modes) that are invisible to a fixed focal station wavefront sensor, even for highly redundant multidirectional tomographic measurement schemes. We describe these modes and give a theoretical explanation for them.
© 2010 Optical Society of America
OCIS Codes
(080.1010) Geometric optics : Aberrations (global)
(110.6960) Imaging systems : Tomography
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(110.1080) Imaging systems : Active or adaptive optics
ToC Category:
Imaging Systems
History
Original Manuscript: August 31, 2010
Manuscript Accepted: September 12, 2010
Published: November 11, 2010
Citation
Piotr Piatrou and Gary Chanan, "Tomographic alignment algorithm for an extremely large three-mirror telescope: invisible modes," Appl. Opt. 49, 6395-6401 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-33-6395
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