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Optics Letters

Optics Letters


  • Vol. 23, Iss. 8 — Apr. 15, 1998
  • pp: 573–575

Linear phase retrieval for wave-front sensing

Walter J. Wild  »View Author Affiliations

Optics Letters, Vol. 23, Issue 8, pp. 573-575 (1998)

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Phase retrieval from one or more intensity measurements is a potentially powerful and appealing technique for real-time adaptive-optics wave-front sensors. Under the assumption of small wave-front phase excursions, one is able to derive an exact solution to the inverse problem given three or more intensity measurements with known phase offsets. Applications include a high-order wave-front sensor to correct for residual aberrations in an adaptive-optics system in tandem with a low-resolution Hartmann–Shack wave-front sensor. The formula can also furnish mathematical insights into the full nonlinear phase-retrieval task.

© 1998 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics
(010.7350) Atmospheric and oceanic optics : Wave-front sensing
(100.5070) Image processing : Phase retrieval

Walter J. Wild, "Linear phase retrieval for wave-front sensing," Opt. Lett. 23, 573-575 (1998)

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