Laser guide-star measurements at Lawrence Livermore National Laboratory

Herbert W. Friedman; Kenneth Avicola; Horst D. Bissinger; James M. Brase; John Duff; Donald T. Gavel; James Horton; Claire E. Max; Scot S. Olivier; David A. Rapp; J. Thaddeus Salmon; David A. Smauley; Kenneth E. Waltjen

doi:10.1117/12.152687

25 August 1993 Laser guide-star measurements at Lawrence Livermore National Laboratory

Herbert W. Friedman, Kenneth Avicola, Horst D. Bissinger, James M. Brase, John Duff, Donald T. Gavel, James Horton, Claire E. Max, Scot S. Olivier, David A. Rapp, J. Thaddeus Salmon, David A. Smauley, Kenneth E. Waltjen

Author Affiliations +

Proceedings Volume 1920, Active and Adaptive Optical Components and Systems II; (1993) https://doi.org/10.1117/12.152687
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

Abstract

Recent results from the Laser Guide Star Project at Lawrence Livermore National Laboratory are presented. Photometry of the return signal has shown that the photon return is approximately 10 photons/cm²/ms at the pupil of the receiving telescope in agreement with a detailed model of the sodium interaction. Wavefronts of the laser guide star have also been measured with a Shack-Hartmann technique and power spectra have been shown to agree with those of nearby natural stars. Plans for closed loop demonstrations using the laser guide star at LLNL and nearby Lick Observatory are discussed.

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Herbert W. Friedman, Kenneth Avicola, Horst D. Bissinger, James M. Brase, John Duff, Donald T. Gavel, James Horton, Claire E. Max, Scot S. Olivier, David A. Rapp, J. Thaddeus Salmon, David A. Smauley, and Kenneth E. Waltjen "Laser guide-star measurements at Lawrence Livermore National Laboratory", Proc. SPIE 1920, Active and Adaptive Optical Components and Systems II, (25 August 1993); https://doi.org/10.1117/12.152687

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