Design of input phase mask for the space bandwidth of the optical encryption system

Takanori Nomura; Eiji Nitanai; Takuhisa Numata; Bahram Javidi

doi:10.1117/1.2158409

1 January 2006 Design of input phase mask for the space bandwidth of the optical encryption system

Takanori Nomura, Eiji Nitanai, Takuhisa Numata, Bahram Javidi

Author Affiliations +

Optical Engineering, Vol. 45, Issue 1, 017006 (January 2006). https://doi.org/10.1117/1.2158409

Abstract

A method to design an input phase mask for double-random phase-encoding optical encryption is proposed. The input phase mask is iteratively designed so that the extent of the Fourier spectrum of the product of an input image and the input phase mask correspond to the space bandwidth of the optical system. By using the designed input phase mask, we show that the bit-error rate is improved. We also discuss the number of phase levels of the designed input phase mask.

©(2006) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Takanori Nomura, Eiji Nitanai, Takuhisa Numata, and Bahram Javidi "Design of input phase mask for the space bandwidth of the optical encryption system," Optical Engineering 45(1), 017006 (1 January 2006). https://doi.org/10.1117/1.2158409

Published: 1 January 2006

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