Abstract
Computer-generated holograms (CGH's) have proved effective as non-periodic diffractive elements for beam shaping. The elements are usually designed with the iterative algorithms based on the Gerchberg-Saxton Algorithm [1-3]. However, the initial random phase and the phase freedom in the image plane used in those algorithms introduce speckle noise in the reconstructed image [4]. Several techniques have been proposed for designing speckle-free CGH's.
© 1996 Optical Society of America
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