Effects of piston and tilt errors on the performance of multiple mirror telescopes

Details Effects of piston and tilt errors on the performance of multiple mirror telescopes Effects of piston and tilt errors on the performance of multiple mirror telescopes

Jan 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981spie..293...85b&link_type=abstract

In: Wavefront distortions in power optics; Proceedings of the Meeting, San Diego, CA, August 27, 28, 1981. (A83-22449 08-36) Bel

Physics

Optics

1

Laser Target Designators, Light Transmission, Optical Relay Systems, Phase Error, Telescopes, Wave Front Deformation, Aberration, Far Fields, High Power Lasers, Irradiance, Mirrors, Position Errors

Scientific paper

The effects of phasing error and random segment jitter in a multiple mirror telescope used for laser beam transmission on the average far-field, on-axis irradiance are computed. An exact expression for the Strehl ratio is obtained and shown to be more accurate than the Strehl approximation at low numbers of subapertures (less than six). The behavior of the exact Strehl ratio as a function of piston and tilt errors is illustrated for the limiting cases of a single aperture, no pointing error, and an infinity of subapertures.

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