The tilt determination problem of laser guide star in adaptive optics.

Details The tilt determination problem of laser guide star in adaptive optics. The tilt determination problem of laser guide star in adaptive optics.

Jan 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997acaps..17..103f&link_type=abstract

Acta Astrophys. Sin., Vol. 17, No. 1, p. 103 - 106

Physics

Optics

Telescopes: Adaptive Optics

Scientific paper

The expression of the tilt-corrected anisoplanatic variance of laser guide star in adaptive optics is derived from Zernike polynomials. By a criterion of tilt anisoplanatic variance 1 rad2, the expression of tilt isoplanatic angle is derived. For a turbulence model measured at Kunming and a 0.6 m diameter aperture at a 0.5 μm operating wavelength, the tilt anisoplanatic angle is 15.3 μrad, and the isoplanatic angle θ0 is 5 μrad.

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