Evaluation of Phase-Shifting Approaches for a Point-Diffraction Interferometer with the Mutual Coherence Function
Applied Optics, Vol. 41, Issue 36, pp. 7499-7509 (2002)
http://dx.doi.org/10.1364/AO.41.007499
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Abstract
The estimation accuracy of a point-diffraction interferometer is examined with two phase-shifting schemes: spatial and temporal. Under the assumption of plane- or spherical-wave propagation through isotropic turbulence that can be accurately represented as a series of thin phase screens, results that are valid for any scintillation regime are obtained by use of the invariance with a propagation of the mutual coherence function. It is established that the estimation accuracy of the spatial phase-shifting point-diffraction interferometer is invariant with scintillation. Upper and lower bounds on the performance of the temporal phase-shifting point-diffraction interferometer are developed. Wave optical simulation results are presented that validate the analytic predictions for the two phase-shifting schemes. The results and techniques presented can be used to assess the appropriate phase-shifting scheme given finite resources, such as a limited number of pixels in a detector array or a restricted detector frame rate.
© 2002 Optical Society of America
[Optical Society of America ]
OCIS Codes
(010.1300) Atmospheric and oceanic optics : Atmospheric propagation
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
Citation
Jeffrey D. Barchers and Troy A. Rhoadarmer, "Evaluation of Phase-Shifting Approaches for a Point-Diffraction Interferometer with the Mutual Coherence Function," Appl. Opt. 41, 7499-7509 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-36-7499
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