We introduce a two-dimensional interleaving method to improve the output accuracy of volume holographic correlators. The method redistributes the pattern of every input and stored image without changing their inner products, so it can eliminate the impact of correlation pattern difference on calculated inner product values. Experimental tests show that this method can achieve more accurate output intensity for every channel, which agrees much better with the theoretical value than without this method.
© 2007 Optical Society of America
Fourier Optics and Signal Processing
Original Manuscript: July 2, 2007
Revised Manuscript: August 30, 2007
Manuscript Accepted: August 30, 2007
Published: October 8, 2007
Kai Ni, Zongyao Qu, Liangcai Cao, Ping Su, Qingsheng He, and Guofan Jin, "Improving accuracy of multichannel volume holographic correlators by using a two-dimensional interleaving method," Opt. Lett. 32, 2972-2974 (2007)