Misalignment compensation in spatial light modulator based optical   filtering techniques
  A new method for the compensation of misalignment in the spatial light modulator based optical linear filtering techniques is presented. It is based on the correlation of the wave fields generated across the input and the output planes of filtering setups. Experimental results are given to demonstrate the effectiveness of the method. 
Mostafa Agour, Claas Falldorf, Christoph von Kopylow and Ralf. B.   Bergmann
physics.optics