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The ALFA Laser and Analysis Tools

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Abstract

The optimal performance of adaptive optics systems can only be maintainedif the wavefront reference is bright and compact.Experience has shown that both of these important criteria are remarkablydifficult to achieve with laser guide stars. This contribution gives an account of the methods by which ALFAattempts to reach them.First, the production of a high quality, high power laser beam isdescribed.However, this quality is unavoidably compromised along the path to thelaunch telescope.In order to rectify this, a new set of diagnostic tools which monitorthe quality of the out-going beam has been installed, and these arealso described.Lastly, we outline a number of possible modifications on which we areworking.If successful, these may allow a substantial improvement in the beamquality.

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References

  • Balykin, V.: 1980, Opt. Comm. 33, 31.

    Google Scholar 

  • Ge, J., J. Angel, B. Jacobsen, T. Roberts, T. Martinez, W. Livingston, B. McLeod, M. Lloyd-Hart, P. McGuire, and R. Noyes: 1997, ‘Mesosphere Sodium Column Density and Laser Guide Star Brightness’. In: N. Hubin (ed.): Laser Technology for Laser Guide Star Adaptive Optics Astronomy, Vol. 55. pp. 10–15.

  • Ge, J., B. Jacobsen, J. Angel, P. McGuire, T. Roberts, B. McLeod, and M. Lloyd-Hart: 1998, ‘Simultaneous Measurements of Sodium Column Density and Laser Guide Star Brightness’. In: Adaptive Optics System Technologies, Vol. 3353. pp. 242–253.

    Google Scholar 

  • Happner, W.: 1972, Rev. Mod. Phys. 44.

  • Hawkins, W.: 1955, Phys. Rev. 98, 478.

    Google Scholar 

  • Ott, T. et al.; 2000, ‘The ALFA laser: beam relay and control system’, Experimental Astronomy 10(1), 89–101 (this issue).

    Google Scholar 

  • Quirrenbach, A., W. Hackenberg, H.-C. Holstenberg, and N. Wilnhammer: 1997, ‘The ALFA Dye Laser System’. In: N. Hubin (ed.): Laser Technology for Laser Guide Star Adaptive Optics Astronomy, Vol. 55. pp. 126–131.

  • Shore, B.: 1990, The Theory of Coherent Atomic Excitation. Wiley, New York.

    Google Scholar 

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Authors and Affiliations

  1. Max-Planck-Institut für extraterrestrische Physik, Garching, Germany

    S. Rabien

  2. Max-Planck-Institut für extraterrestrische Physik, Garching, Germany

    T. Ott, W. Hackenberg, A. Eckart & R. Davies

  3. Max-Planck-Institut für Astronomie, Heidelberg, Germany

    M. Kasper

  4. University of California, San Diego, Calif., U.S.A

    A. Quirrenbach

Authors
  1. S. Rabien
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  2. T. Ott
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  3. W. Hackenberg
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  4. A. Eckart
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  5. R. Davies
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  6. M. Kasper
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  7. A. Quirrenbach
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Corresponding author

Correspondence to S. Rabien.

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Rabien, S., Ott, T., Hackenberg, W. et al. The ALFA Laser and Analysis Tools. Experimental Astronomy 10, 75–88 (2000). https://doi.org/10.1023/A:1008137214239

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  • DOI: https://doi.org/10.1023/A:1008137214239

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