Bandwidth specification for adaptive optics systems

Details Bandwidth specification for adaptive optics systems Bandwidth specification for adaptive optics systems

Mar 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977josa...67..390g&link_type=abstract

Optical Society of America, Journal, vol. 67, Mar. 1977, p. 390-393. ARPA-supported research.

Physics

Optics

42

Adaptive Optics, Bandwidth, Equipment Specifications, Optical Equipment, Wave Front Deformation, Astronomical Observatories, Astronomical Photography, Atmospheric Optics, Instrument Compensation, Systems Engineering, Wind Velocity

Scientific paper

A simplified expression for the bandwidth of an adaptive optics system is found to depend on a weighted path integral of the turbulence strength, where the weighting is transverse wind velocity to the 5/3 power. The wave-front corrector is conservatively assumed to match the phase perfectly, at least spatially, if not temporally. For the case of astronomical imaging from a mountaintop observatory, the necessary bandwidth is found to be less than 200 Hz.

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