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光存储是继磁存储之后迅速发展起来的重要信息存储技术,不仅光存储媒体(例如光盘)已经成为当代信息社会中不可缺少的信息载体,而且光存储是未来信息科学发展的重要支柱。这是因为信息科学在20世纪是基于电子学向光电子学发展的阶段;在21世纪是基于光电子学向光子学发展的新阶段;两个阶段的根本区别是信息载体将由带负电的电子转变为不带电的光子,光存储就是信息载体为光子的存储,它可以进入到电子载体所不能进入的超高密度、超快速度以及并行输入/输出、
Optical storage is an important information storage technology rapidly developed after magnetic storage. Not only optical storage media (such as optical disks) have become indispensable information carriers in contemporary information society, but optical storage is an important pillar for the development of information science in the future. This is because information science in the 20th century was based on the development phase of electronics to optoelectronics; in the 21st century it was based on the new phase of the development of optoelectronics to photonics; the fundamental difference between the two phases was that information carriers would be transformed from negatively charged electrons to Uncharged photons, optical storage is the information carrier for photon storage, it can enter the electronic carrier can not enter the ultra-high-density, ultra-fast speed and parallel input / output,