Optical Information Processing by Synthesis of the Coherence Function--Photonic/Video Hybrid System--

Toru OKUGAWA  Kazuo HOTATE  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E78-C   No.9   pp.1286-1291
Publication Date: 1995/09/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Opto-Electronics
Keyword: 
opto-electronics,  optical information processing,  synthesis of the coherence function,  reflectometry,  

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Summary: 
A photonic/video hybrid system for optical information processing by synthesis of the coherence function is proposed. Optical coherence function can be synthesized to have delta-function-like shape or notch shape by using direct frequency modulation of a laser diode with an appropriate waveform. Therefore, by choosing only the interference component in the interferometer, information processing functions can be obtained. The photonic/video hybrid system proposed provides a novel way to choose the interference component, which can improve the spatial resolution compared with our previous system with holographic technique. Selective extraction two-dimensional (2-D) information from a three-dimensional (3-D) object is successfully performed in basic experiments.