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    • 5. 发明授权
    • Optical storage method and apparatus
    • 光存储方法和装置
    • US4856862A
    • 1989-08-15
    • US185103
    • 1988-04-22
    • Charles G. PassmoreRobert D. MowryAlan G. Brown
    • Charles G. PassmoreRobert D. MowryAlan G. Brown
    • G02B6/28G02B6/44G06E1/02G11C21/00
    • G11C21/00G02B6/2861G02B6/4457G06E1/02
    • A storage system based on the propagation delay of light is disclosed which utilizes an array of fiber optics to store the information. The storage device is configured as two loops. Data is injected from one loop and data is continuously recirculated for storage in the other loop. A pulsed laser provides the clocked energy source and is split for use, both, in recirculating the data, and for new data injection. Multiple channels of light are extracted by using a diffraction grating. The source may be interrupted to erase data in the recirculating memory. Recirculation takes place over a single strand fiber optics coil of any length. Multiple frequency encoded channels of data are multiplexed into the single strand of fiber optic with an integrating lens and the channels are decoupled on the other end with a diffraction grating. To prevent compounding signal degradation, optical switches are used to regenerate the signal at each pass through the loop. A beam splitter in the recirculating loop provides for data extraction through the use of a photosensor array. Data is injected into the recirculating loop by pulsing in light using electro-optical shutters. The device is useful for data storage in optical and digital computing. The device may also be used as a platform for recursive optical computing by the placement of optical computing components within the recirculating memory loop.
    • 公开了一种基于光的传播延迟的存储系统,其利用光纤阵列来存储信息。 存储设备配置为两个循环。 数据从一个循环注入,数据被连续再循环以存储在另一个循环中。 脉冲激光器提供了时钟能量源,并且被分开用于在再循环数据和新数据注入中使用。 通过使用衍射光栅提取多个光通道。 源可能被中断以擦除再循环存储器中的数据。 在任何长度的单股光纤线圈上进行再循环。 数据的多频编码通道用积分透镜复用到单根光纤中,并且通道在另一端用衍射光栅去耦。 为了防止复合信号劣化,光开关用于在每次通过环路时再生信号。 再循环回路中的分束器通过使用光电传感器阵列提供数据提取。 数据通过使用电光快门的光脉冲注入循环回路。 该设备对光学和数字计算中的数据存储非常有用。 该装置还可以用作通过在循环存储器环路内放置光学计算部件来进行递归光学计算的平台。