Practical implementation of phase-only optical encryption system

Paul C. Mogensen; Jesper Glueckstad

doi:10.1117/12.382199

7 April 2000 Practical implementation of phase-only optical encryption system

Paul C. Mogensen, Jesper Glueckstad

Proceedings Volume 3973, Optical Security and Counterfeit Deterrence Techniques III; (2000) https://doi.org/10.1117/12.382199
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

In this paper, we present a system for the practical implementation of phase-only optical encryption. Our approach is based on the use of the generalized phase contrast technique for the readout of decrypted information contained within the phase component of an optical wavefront. The decryption is achieved by superimposing a decrypting phase key and an encrypted phase mask in the image plane of an optical system and then applying the generalized phase contrast technique to generate an intensity pattern corresponding to the original encoded information. We have constructed an experiment system in which an encrypted binary phase mask is decrypted by a binary phase key that is implemented electronically on a phase-only spatial light modulator allowing a simplified electronic alignment of the key by scrolling its position with respect to the mask.

Citation Download Citation

Paul C. Mogensen and Jesper Glueckstad "Practical implementation of phase-only optical encryption system", Proc. SPIE 3973, Optical Security and Counterfeit Deterrence Techniques III, (7 April 2000); https://doi.org/10.1117/12.382199

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available