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Proceedings Paper

Telescope wavefront aberration compensation with a deformable mirror in an adaptive optics system
Author(s): Hamid Hemmati; Yijiang Chen; Ian Crossfield
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Paper Abstract

With the goal of reducing the surface wavefront error of low-cost multi-meter-diameter mirrors from about 10 waves peak-to-valley (P-V), at 1μm wavelength, to approximately 1-wave or less, we describe a method to compensate for slowly varying wavefront aberrations of telescope mirrors. A deformable mirror is utilized in an active optical compensation system. The RMS wavefront error of a 0.3m telescope improved to 0.05 waves (0.26 waves P-V) from the original value of 1.4 waves RMS (6.5 waves P-V), measured at 633nm, and the Strehl ratio improved to 89% from the original value of 0.08%.

Paper Details

Date Published: 1 March 2006
PDF: 4 pages
Proc. SPIE 6105, Free-Space Laser Communication Technologies XVIII, 61050O (1 March 2006); doi: 10.1117/12.660262
Show Author Affiliations
Hamid Hemmati, Jet Propulsion Lab. (United States)
Yijiang Chen, Jet Propulsion Lab. (United States)
Ian Crossfield, Jet Propulsion Lab. (United States)

Published in SPIE Proceedings Vol. 6105:
Free-Space Laser Communication Technologies XVIII
G. Stephen Mecherle, Editor(s)

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