Telescope wavefront aberration compensation with a deformable mirror in an adaptive optics system

Hamid Hemmati; Yijiang Chen; Ian Crossfield

doi:10.1117/12.660262

1 March 2006 Telescope wavefront aberration compensation with a deformable mirror in an adaptive optics system

Hamid Hemmati, Yijiang Chen, Ian Crossfield

Proceedings Volume 6105, Free-Space Laser Communication Technologies XVIII; 61050O (2006) https://doi.org/10.1117/12.660262
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

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%.

Citation Download Citation

Hamid Hemmati, Yijiang Chen, and Ian Crossfield "Telescope wavefront aberration compensation with a deformable mirror in an adaptive optics system", Proc. SPIE 6105, Free-Space Laser Communication Technologies XVIII, 61050O (1 March 2006); https://doi.org/10.1117/12.660262

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