Title of article :
All-Optical Pattern Recognition for Digital Real-Time Information Processing
Author/Authors :
Boffi، Pierpaolo نويسنده , , Piccinin، Davide نويسنده , , Ubaldi، Maria Chiara نويسنده , , Martinelli، Mario نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
To recognize digital streams of digital data, all-optical and passive techniques able to discriminate optical bit words in real time are presented. Discrimination capability of different correlators, both in free space architectures and in delay lines structures, is theoretically and experimentally analyzed. Experimental performances in word recognition are shown in the case of a volume holographic correlator, in the case of a lithographic phase-only-filter correlator, and in the case of a novel coherent delay lines correlator operating at the wavelength 1550 nm and at the bit rate of 2.5 Gbit /s.
Keywords :
Spectral density function , Estimation , covariance , aliasing , Bias , Consistency , Doppler , cyclostationary , multipath , harmonizable functions
Journal title :
Applied Optics
Journal title :
Applied Optics