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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 11, Iss. 1 — Jan. 1, 1994
  • pp: 394–408

Analysis of multiconjugate adaptive optics

Dustin C. Johnston and Byron M. Welsh  »View Author Affiliations


JOSA A, Vol. 11, Issue 1, pp. 394-408 (1994)
http://dx.doi.org/10.1364/JOSAA.11.000394


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Abstract

We investigate a method for widening the compensated field of view of an adaptive-optical telescope with multiple deformable mirrors and an array of artificial guide stars. An ensemble of wavefront sensor measurements, made with the individual guide stars in the array, is used to estimate the contribution of a region of the atmosphere to the cumulative phase distortion. Our analysis includes the effects of measurement noise, wavefront-sensor sampling, and reconstruction of the wave front from slope measurements. We performed numerical computations for an atmosphere consisting of two turbulent layers: one at 1% of the guide-star altitude with 90% of the total turbulence strength and one at 10% of the guide-star altitude with the remaining 10% of the total turbulence strength. If we assume that r0 = 0.15 m and that a photon-limited wave-front sensor detecting 50 photons/r0-sized subaperture is used, the results indicate that a 0.9-m-square telescope with a diagonal field of view of ~92 μrad ≈ 19 arcsec can use two deformable mirrors, four laser guide stars, and a natural tilt reference star to achieve an rms residual phase error that is <λ/7 over its entire field of view.

© 1994 Optical Society of America

History
Original Manuscript: November 2, 1992
Revised Manuscript: February 1, 1993
Manuscript Accepted: February 8, 1993
Published: January 1, 1994

Citation
Dustin C. Johnston and Byron M. Welsh, "Analysis of multiconjugate adaptive optics," J. Opt. Soc. Am. A 11, 394-408 (1994)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-11-1-394


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References

  1. H. W. Babcock, “The possibility of compensating astronomical seeing,” Publ. Astron. Soc. Pac. 65, 229–236, (1953). [CrossRef]
  2. G. Rousset, J. C. Fontanella, P. Kern, P. Gigan, F. Rigaut, P. Léna, C. Boyer, P. Jagourel, J. P. Gaffard, F. Merkle, “First diffraction-limited astronomical images with adaptive optics,” Astron. Astrophys. 230, L29–L32 (1990).
  3. R. Q. Fugate, D. L. Fried, G. A. Ameer, B. R. Boeke, S. L. Browne, P. H. Roberts, R. E. Ruane, G. A. Tyler, L. M. Wopat, “Measurement of atmospheric wavefront distortion using scattered light from a laser guide-star,” Nature (London) 353, 144–146 (1991). [CrossRef]
  4. D. V. Murphy, “Atmospheric-turbulence compensation experiments using cooperative beacons,” Lincoln Lab. J. 5, 25–44 (1992).
  5. R. R. Parenti, “Adaptive optics for astronomy,” Lincoln Lab. J. 5, 93–114 (1992).
  6. R. H. Dicke, “Phase-contrast detection of telescope seeing errors and their correction,” Astrophys. J. 198, 605–615 (1975). [CrossRef]
  7. 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, M.-H. Ulrich, ed. (European Southern Observatory, Garching, Germany, 1988), pp. 693–703.
  8. D. L. Fried, “Adaptive optics for imaging within the atmosphere: reference generation and field-of-view widening,” (Optical Sciences Company, Placentia, Calif., 1977).
  9. R. Foy, A. Labeyrie, “Feasibility of adaptive telescope with laser probe,” Astron. Astrophys. 152, 129–131 (1985).
  10. L. A. Thompson, C. S. Gardner, “Experiments on laser guide stars at Mauna Kea Observatory for adaptive imaging in astronomy,” Nature (London) 328, 229–231 (1987). [CrossRef]
  11. C. A. Primmerman, D. V. Murphy, D. A. Page, B. G. Zollars, H. T. Barclay, “Compensation of atmospheric optical distortion using a synthetic beacon,” Nature (London) 353, 141–143 (1991). [CrossRef]
  12. R. A. Humphreys, C. A. Primmerman, L. C. Bradley, J. Herrman, “Atmospheric-turbulence measurements using a synthetic beacon in the mesospheric sodium layer,” Opt. Lett. 16, 1367–1369 (1991). [CrossRef] [PubMed]
  13. B. G. Zollars, “Atmospheric-turbulence compensation experiments using synthetic beacons,” Lincoln Lab. J. 5, 67–92 (1992).
  14. M. Tallon, R. Foy, “Adaptive telescope with laser probe: isoplanatism and cone effect,” Astron. Astrophys. 235, 549–557 (1990).
  15. E. P. Wallner, “Optimal wave-front correction using slope measurements,”J. Opt. Soc. Am. 73, 1771–1776 (1983). [CrossRef]
  16. B. M. Welsh, C. S. Gardner, “Performance analysis of adaptive-optics systems using laser guide stars and slope sensors,” J. Opt. Soc. Am. A 6, 1913–1923 (1989). [CrossRef]
  17. B. M. Welsh, C. S. Gardner, “Effects of turbulence-induced anisoplanatism on the imaging performance of adaptive-astronomical telescopes using laser guide stars,” J. Opt. Soc. Am. A 8, 69–80 (1991). [CrossRef]
  18. J. Vernin, F. Roddier, “Experimental determination of two-dimensional spatiotemporal power spectra of stellar light scintillation. Evidence for a multilayer structure of the air turbulence in the upper troposphere,”J. Opt. Soc. Am. 63, 270–273 (1973). [CrossRef]
  19. F. Roddier, L. Cowie, J. E. Graves, A. Songaila, D. McKenna, J. Vernin, M. Azouit, J. L. Caccia, E. Limburg, C. Roddier, D. Salmon, S. Beland, D. Cowley, S. Hill, “Seeing at Mauna Kea: a joint UH-UN-NOAO-CFHT study,” in Advanced Technology Optical Telescopes IV, L. D. Barr, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1236, 485–491 (1990). [CrossRef]
  20. J. W. Goodman, Statistical Optics (Wiley, New York, 1985).
  21. T. S. McKechnie, “Light propagation through the atmosphere and the properties of images formed by large ground-based telescopes,” J. Opt. Soc. Am. A 8, 346–365 (1991). [CrossRef]
  22. F. Roddier, “Astronomical adaptive optics with natural reference stars,” presented at the Laser Guide Star Adaptive Optics Workshop, Kirtland Air Force Base, N.M., 1992.
  23. R. Foy, “Work in France in the field of the laser artificial guide star,” presented at the Laser Guide Star Adaptive Optics Workshop, Kirtland Air Force Base, N.M., 1992.
  24. F. Rigaut, “Dual adaptive optics: a solution to the tilt determination problem using laser guide star,” presented at the Laser Guide Star Adaptive Optics Workshop, Kirtland Air Force Base, N.M., 1992.
  25. D. C. Johnston, “Increasing the corrected field of view of an adaptive optical telescope,” Ph.D. dissertation (School of Engineering, U.S. Air Force Institute of Technology, Wright-Patterson Air Force Base, Ohio, 1992).
  26. D. L. Fried, “Statistics of a geometric representation of wavefront distortion,”J. Opt. Soc. Am. 55, 1427–1435 (1965). [CrossRef]
  27. T. J. Kane, B. M. Welsh, C. S. Gardner, “Wavefront detector optimization for laser guided adaptive telescopes,” in Active Telescope Systems, F. Roddier, ed., Proc. Soc. Photo-Opt. Instrum. Eng.1114, 160–171 (1989). [CrossRef]

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