COLLINEAR HETERODYNING IN OPTICAL PROCESSORS

被引：18
作者：
CARLETON, HR
MALONEY, WT
MELTZ, G
机构：
[1] State University of New York, Stony Brook
[2] Sperry Rand Research Center, Sudbury, Mass.
[3] Mitre Corporation, Bedford, Mass.
来源：
PROCEEDINGS OF THE IEEE | 1969年 / 57卷 / 05期
关键词：
D O I：
10.1109/PROC.1969.7071
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The basic principles of several real-time optical processing schemes employing heterodyning are examined. In each case the method by which the correlation function is developed from the ultrasonic light modulator (ULM) is analyzed. It is shown that in some configurations it is possible to derive the heterodyne reference collinearly, thus increasing the mechanical stability and minimizing the effects of optical aberrations. Experimental results obtained with a correlator using a shear-wave ULM and collinear heterodyning confirm its stability and verify the fact that quality performance can be obtained with inexpensive optical components. Copyright © 1969 by The Institute of Electrical and Electronics Engineers, Inc.
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页码：769 / +
页数：1
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