Title :
Optical encryption using an input phase mask designed for the space bandwidth of the optical system
Author :
Nomura, Tadahiro ; Fujita, Takashi ; Numata, T. ; Javidi, Bahram
Author_Institution :
Dept. of Opto-Mechatronics, Wakayama Univ., Sakaedani, Japan
Abstract :
The method to design an input phase mask for the double-random phase-encoding optical encryption is proposed. The input phase mask is designed so that the extend of the Fourier spectrum of the product of an input image and the input phase mask corresponds to the space bandwidth of the optical system. By using the designed input phase mask, we show that the bit-error rate is improved.
Keywords :
Fourier transform optics; cryptography; error statistics; optical information processing; phase coding; Fourier spectrum; bit-error rate; double-random phase-encoding optical encryption; phase mask; space bandwidth; Artificial intelligence; Bandwidth; Bit error rate; Computer simulation; Cryptography; Design engineering; Design methodology; Encoding; Optical design; Systems engineering and theory;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363252
