1000幅数字图像的晶体体全息存储与恢复 |
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引用本文: | 李晓春 徐玉恒. 1000幅数字图像的晶体体全息存储与恢复[J]. 光学学报, 1998, 18(6): 22-725 |
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作者姓名: | 李晓春 徐玉恒 |
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作者单位: | 清华大学精密仪器系,哈尔滨工业大学应用化学系 |
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基金项目: | 国家自然科学基金,国防预研基金 |
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摘 要: | ![]() 利用Fe:LiNbO3光折变晶体和角度多重方法,在晶体人的一个公共体积内实现了1000多幅数字图像的存储与重建。由于同时采用差分编码与纠错编码,因而系统抗噪能力细,误码率低。整个同计算机控制,自动化程度高。
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关 键 词: | 全息存储器 纠错码 光学存储 数学图象 恢复 |
收稿时间: | 1997-12-10 |
Volume Holographic Storage and Retrieval of 1000 Digital Images in Lithium Niobate |
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Abstract: | ![]() As many as 1000 digital images have been recorded in a common volume of an Fe:LiNbO3 photorefractive crystal using angular multiplexing. The combination of the error-correcting encoding and the differential encoding results in a significant noise-tolerant feature and thus a lower bit-error rate is achieved. As a highly automated digital holographic memory, the overall system is under the control of a computer. Experimental results are presented. |
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Keywords: | holographic memory error-correcting encoding angular multiplexing |
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