Rapidly convergent phase-retrieval strategy for use with reflected laser light
JOSA A, Vol. 20, Issue 6, pp. 1013-1024 (2003)
http://dx.doi.org/10.1364/JOSAA.20.001013
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Abstract
An approach for wave-front sensing using reflected laser light from a rough object is proposed. Light from a single laser beam is split into two beams, and the beams are launched from spatially separated apertures to illuminate an object. The reflected laser light is measured in the pupil plane of a receive telescope and in a plane conjugate to the object. By modulation of one of the two illuminator beams, the intensity pattern associated with each beam, as well as the field cross product of the two beams, is measured in each plane. A phase-retrieval algorithm is formulated by using projections onto constraint sets to recover the complex field associated with each illuminator. The algorithm is found to converge rapidly to the correct solution, particularly when compared with the convergence rates of more conventional phase-retrieval approaches. The new algorithm exhibits excellent performance in strong scintillation and is very tolerant to noise, exhibiting only a very small noise gain.
© 2003 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, "Rapidly convergent phase-retrieval strategy for use with reflected laser light," J. Opt. Soc. Am. A 20, 1013-1024 (2003)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-20-6-1013
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