Strehl Ratio and Modulation Transfer Function for Segmented Mirror Telescopes as Functions of Segment Phase Error
Applied Optics, Vol. 38, Issue 31, pp. 6642-6647 (1999)
http://dx.doi.org/10.1364/AO.38.006642
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Abstract
We derive the Strehl ratio for a segmented mirror telescope as a function of the rms segment phase error and the observing wavelength, with and without the effects of the atmosphere. A simple analytical expression is given for the atmosphere-free case. Although our specific results are in the context of the Keck telescope, they are presented in a way that should be readily adaptable to other segmented geometries. We also derive the corresponding modulation transfer functions. These results are useful in determining how accurately a segmented mirror telescope needs to be phased for a variety of observing applications.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(110.6770) Imaging systems : Telescopes
(350.1260) Other areas of optics : Astronomical optics
(350.5030) Other areas of optics : Phase
Citation
Gary Chanan and Mitchell Troy, "Strehl Ratio and Modulation Transfer Function for Segmented Mirror Telescopes as Functions of Segment Phase Error," Appl. Opt. 38, 6642-6647 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-31-6642
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