Dynamic wavefront generation for the characterisation and testing of optical systems

Opt. Lett., Vol. 23, No. 23, Dec. 1998, 1849-51. M.A.A. Neil, M.J. Booth & T. Wilson

We describe a simple method for generating known optical aberrations dynamically, using a ferroelectric liquidcrystalspatial light modulator. Aberrations inherent in the optical system are measured and corrected, andas an example Kolmogorov turbulence is simulated for aperture sizes Dyr0 from 0 to 30, varying at frame ratesup to 2.5 kHz. A measure of wave-front generation efficiency is introduced and is shown to be better than 86%for Kolmogorov phase screens with Dyr0 in the range from 0 to 30.

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