| LiNbO3:Fe光折变晶体实时光学相关存贮研究 |
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| 引用本文： | 陆猗,刘思敏,舒华德,孙骞,张光寅,许京军,刘军民.LiNbO3:Fe光折变晶体实时光学相关存贮研究[J].物理学报,1994,43(11):1770-1775. |
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| 作者姓名： | 陆猗 刘思敏 舒华德 孙骞 张光寅 许京军 刘军民 |
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| 作者单位： | (1)南开大学物理系; (2)天津理工学院二分院 |
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| 摘 要： | 在ＬｉＮｂO3：Ｆｅ晶体中实现了光折变实时相关存贮。它兼备存贮器与相关器两种器件的优点，又具有光折变器件的实时特点，因而可从数个被存贮的信息中实时、快速地挑选出与输入信息相关的信息。从相关点的强度和位置可立即得到孩信息与输入信息的相关程度和编码序数，其原理基于光折变匹配滤波器的筛远性。因此该器件具有广阔的应用前景。
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| 关 键 词： | 光折变 晶体 实时相关 铌酸锂 光学相关 存贮器 |
| 收稿时间： | 9/2/1993 12:00:00 AM |
STUDIES OF THE REAL-TIME OPTICAL CORRELATION STORAGE IN LiNbO3:Fe Photorefractive Crystals |
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| LU YI,LIU SI-MIN,SHU HUA-DE,SUN QIAN,ZHANG GUANG-YIN,XU JING-JUN and LIU JUN-MIN.STUDIES OF THE REAL-TIME OPTICAL CORRELATION STORAGE IN LiNbO3:Fe Photorefractive Crystals[J].Acta Physica Sinica,1994,43(11):1770-1775. |
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| Authors: | LU YI LIU SI-MIN SHU HUA-DE SUN QIAN ZHANG GUANG-YIN XU JING-JUN and LIU JUN-MIN |
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| Abstract: | The real-time optical correlation-storage in photorefractive crystals has firstly been realized. It possesses the advantages of both storage and correlator, as well as the real-time character of photorefractive devices. It can performa real-time and fast selection of imformation correlated to the input ones from a great amount of stored imformation. The correlation degree of every information with the input ones and its coding number are immediately obtained from the intensity and position of the correlation points. This principle is based on the selectivity of photorefractive matched filter. Hence this device has wide prospect of application. |
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