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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 26, Iss. 22 — Nov. 15, 2001
  • pp: 1743–1745

Sequence of phase correction in multiconjugate adaptive optics

Ralf C. Flicker  »View Author Affiliations


Optics Letters, Vol. 26, Issue 22, pp. 1743-1745 (2001)
http://dx.doi.org/10.1364/OL.26.001743


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Abstract

The way in which the sequence of phase correction impinges on performance in multiconjugate adaptive optics systems is described. When multiple phase modulators with different conjugate ranges are used, the conjugate images of the phase modulators in the atmosphere must be reimaged in the reverse order post focus, and adaptive phase correction applied in this sequence for perfect amplitude and phase cancellation. Performing the correction without relay optics results in residual amplitude and phase aberrations. It is shown, by Monte Carlo simulations of Fresnel propagation, that the effects of wave optical propagation become nonnegligible at visible wavelengths and for large air masses.

© 2001 Optical Society of America

OCIS Codes
(010.1080) Atmospheric and oceanic optics : Active or adaptive optics

Citation
Ralf C. Flicker, "Sequence of phase correction in multiconjugate adaptive optics," Opt. Lett. 26, 1743-1745 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-22-1743


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References

  1. J. M. Beckers, “Increasing the size of the isoplanatic patch with multiconjugate adaptive optics,” in Proceedings of the ESO Conference on Very Large Telescopes and Their Instrumentation (European Southern Observatory, Garching, Germany, 1998), p. 693.
  2. J. Vernin, A. Agabi, R. Avila, M. Azouit, R. Conan, F. Martin, E. Masciadri, L. Sanchez, and A. Ziad, “Gemini CP site characterization report,” Internal Rep. RPT-AO-G0094 (Gemini Observatory, Hilo, Hawaii, 2000).
  3. R. Flicker, F. Rigaut, and B. Ellerbroek, “Comparison of multiconjugate adaptive optics configurations and control algorithms for the Gemini-South 8-m telescope,” Proc. SPIE 4007, 1032–1041 (2000).
  4. R. Ragazzoni, J. Farinato, and E. Marchetti, “Adaptive optics for 100-m-class telescopes: new challenges require new solutions,” Proc. SPIE 4007, 1076–1087 (2000).
  5. J. D. Barchers and B. L. Ellerbroek, “Improved compensation of turbulence-induced amplitude and phase distortions by means of multiple near-field phase phase adjustments,” J. Opt. Soc. Am. A 18, 399–411 (2001).
  6. B. L. Ellerbroek, Gemini Observatory, Hilo, Hawaii 96720 (personal communication, January, 2000).
  7. R. J. Sasiela, Electromagnetic Wave Propagation in Turbulence: Evaluation and Application of Mellin Transforms (Springer-Verlag, Berlin, 1994).

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