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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 67, Iss. 3 — Mar. 1, 1977
  • pp: 360–369

Real-time atmospheric compensation

J. W. Hardy, J. E. Lefebvre, and C. L. Koliopoulos  »View Author Affiliations


JOSA, Vol. 67, Issue 3, pp. 360-369 (1977)
http://dx.doi.org/10.1364/JOSA.67.000360


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Abstract

We have developed an active optical imaging system capable of correcting optical wave-front errors in real time at frequencies in the kilohertz range. Wave-front errors due to atmospheric turbulence in the propagation path, as well as optical figure aberrations and wave-front errors due to mechanical and thermal changes may be compensated. The system used an ac shearing interferometer, a parallel analog data processor, and a monolithic piezoelectric active mirror arranged in a closed-loop configuration. This compensation system can be applied to apertures of any size; experimental results are shown for a system with 21 correction zones.

© 1977 Optical Society of America

Citation
J. W. Hardy, J. E. Lefebvre, and C. L. Koliopoulos, "Real-time atmospheric compensation," J. Opt. Soc. Am. 67, 360-369 (1977)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-67-3-360

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