Peer-Reviewed Journal Details
Mandatory Fields
Monaghan, DS;Gopinathan, U;Kelly, DP;Naughton, TJ;Sheridan, JT
2009
February
Optical Engineering
Systematic errors of an optical encryption system due to the discrete values of a spatial light modulator
Published
7 ()
Optional Fields
SPACE-BANDWIDTH PRODUCT RANDOM-PHASE ENCRYPTION FRACTIONAL FOURIER IMAGE ENCRYPTION DIGITAL HOLOGRAPHY RECONSTRUCTION COMPRESSION FRESNEL SIGNALS DOMAIN
48
An optical implementation of the amplitude encoded double random phase encryption/decryption technique is implemented, and both numerical and experimental results are presented. In particular, we examine the effect of quantization in the decryption process due to the discrete values and quantized levels, which a spatial light modulator (SLM) can physically display. To do this, we characterize a transmissive SLM using Jones matrices and then map a complex image to the physically achievable levels of the SLM using the pseudorandom encoding technique. We present both numerical and experimental results that quantify the performance of the system. (c) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3076208]
BELLINGHAM
0091-3286
10.1117/1.3076208
Grant Details