DocumentCode
2680457
Title
Optical encryption system based on circular polarization and interferometer
Author
Cho, Kyu-Bo ; Chang-Mok Shin ; Seo, Dong-Hoan ; Park, Sang-Gug ; Doh, Yang-Hoi ; Kim, Soo-Joong
Author_Institution
Dept. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea
Volume
2
fYear
2003
fDate
15-19 Dec. 2003
Abstract
We propose an optical encryption system using circular polarization based on interferometer architecture. The phase-modulated input image, represented as orthogonal linearly polarized states by interferometer, is encrypted into circularly polarized states whose direction of the rotation is random. In the decryption we use the inverse matrix of polarization-modulation key and can recover the original polarization states.
Keywords
Mach-Zehnder interferometers; decoding; image coding; light interference; light polarisation; optical polarisers; quantum cryptography; circular polarization; decryption; interferometer; optical encryption system; phase-modulated input image; polarization-modulation key; polarized states; Cryptography; Electronic mail; Optical computing; Optical filters; Optical interferometry; Optical modulation; Optical polarization; Optical retarders; Optimized production technology; Personal digital assistants;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN
0-7803-7766-4
Type
conf
DOI
10.1109/CLEOPR.2003.1276978
Filename
1276978
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