Yasuda Shin, Ogasawara Yasuhiro, Minabe Jiro, Kawano Katsunori, Hayashi Kazuhiro
Research and Technology Group, Fuji Xerox Company, Ltd., 430 Sakai, Nakai-machi, Ashigarakami-gun, Kanagawa 259-0157, Japan.
Appl Opt. 2009 Dec 20;48(36):6851-61. doi: 10.1364/AO.48.006851.
Multiplexing characteristics of a dc-removed coaxial holographic storage system were evaluated for what is believed to be the first time. Our dc-removed coaxial system achieved 3.5 times higher raw data density than a conventional coaxial system that involved dc recording. The increase of the data density was due not only to less M/# consumption but also to the effects of signal amplification and noise reduction by use of the positive and negative images reconstructed from the same holograms.
据信，首次对去除直流分量的同轴全息存储系统的复用特性进行了评估。我们的去除直流分量的同轴系统实现了比采用直流记录的传统同轴系统高3.5倍的原始数据密度。数据密度的提高不仅归因于较小的数值孔径损耗，还归因于利用从同一全息图重建的正像和负像进行信号放大和降噪的效果。
