Method and apparatus for phase correlation holographic drive
    22.
    发明授权
    Method and apparatus for phase correlation holographic drive 失效
    相位相关全息驱动的方法和装置

    公开(公告)号:US06909529B2

    公开(公告)日:2005-06-21

    申请号:US10146085

    申请日:2002-05-13

    申请人: Kevin R. Curtis

    发明人: Kevin R. Curtis

    IPC分类号: G11B7/0065 G03H1/00

    摘要: A holographic storage apparatus for recording data in a holographic medium includes at least one light source for generating a reference beam and a signal beam. The reference beam is preferably a phase beam of unchanging phase content. The apparatus also includes a holographic medium placed in a path of the reference beam and a path of the signal beam. The holographic medium has a first face and both the reference beam and the signal beam enter the holographic medium through the first face. The holographic medium also includes a data reflective surface. The reference beam and the signal beam interfere in the holographic medium to create a hologram only after at least one of the reference beam and the signal beam have reflected off of the data reflective surface.

    摘要翻译: 用于在全息介质中记录数据的全息存储装置包括用于产生参考光束和信号光束的至少一个光源。 参考光束优选为不变相位含量的相位波束。 该装置还包括放置在参考光束的路径中的全息介质和信号光束的路径。 全息介质具有第一面,参考光束和信号光束都通过第一面进入全息介质。 全息介质还包括数据反射表面。 只有在参考光束和信号光束中的至少一个已经从数据反射表面反射出来之后,参考光束和信号光束干涉全息介质才能产生全息图。

    Process for holographic multiplexing
    23.
    发明授权
    Process for holographic multiplexing 有权
    全息复用方法

    公开(公告)号:US06798547B2

    公开(公告)日:2004-09-28

    申请号:US10201357

    申请日:2002-07-22

    IPC分类号: G03H110

    摘要: A method of recording holograms includes: generating a first signal-beam from a signal-beam source and a first reference beam from a reference-beam source; recording a first hologram in a holographic medium from an interference between the first signal beam and the first reference beam; shifting the reference-beam source after the act of recording the first hologram; generating a second signal beam from the signal-beam source and a second reference beam from the reference-beam source after the act of shifting the reference-beam source following the recording of the first hologram; and recording a second hologram in the holographic medium from an interference between the second signal beam and the second reference beam.

    摘要翻译: 记录全息图的方法包括:从信号束源产生第一信号光束和从参考光束源产生第一参考光束; 从第一信号光束和第一参考光束之间的干涉记录全息图中的第一全息图; 在记录第一全息图的动作之后移动参考光束源; 在记录第一全息图之后移动参考光束源的动作之后,从信号光束源产生第二信号光束和来自参考光束源的第二参考光束; 以及从所述第二信号光束和所述第二参考光束之间的干涉在全息介质中记录第二全息图。

    Processing data pixels in a holographic data storage system
    24.
    发明授权
    Processing data pixels in a holographic data storage system 有权
    处理全息数据存储系统中的数据像素

    公开(公告)号:US07848595B2

    公开(公告)日:2010-12-07

    申请号:US11069007

    申请日:2005-02-28

    IPC分类号: G06K9/32 G06K9/36

    摘要: A method for processing data pixels in a holographic data storage system is disclosed. The method includes assigning predetermined reserved blocks throughout each data page, where each reserved block comprises known pixel patterns, determining position errors of the data page by computing the best match between regions of the data page and the predetermined reserved blocks, and compensating the data pixels at the detector in accordance with the corresponding position errors of the data page.

    摘要翻译: 公开了一种用于处理全息数据存储系统中的数据像素的方法。 该方法包括在每个数据页面上分配预定的预留块,其中每个保留块包括已知的像素图案,通过计算数据页的区域与预定的预留块之间的最佳匹配来确定数据页的位置误差,并补偿数据像素 在检测器根据数据页面的相应位置误差。

    System and method for bitwise readout holographic ROM
    25.
    发明授权
    System and method for bitwise readout holographic ROM 失效
    按位读出全息ROM的系统和方法

    公开(公告)号:US06825960B2

    公开(公告)日:2004-11-30

    申请号:US10346399

    申请日:2003-01-15

    IPC分类号: G03H104

    摘要: According to one aspect a method for manufacturing a holographic storage medium includes providing one or more data masks with data to be recorded, illuminating the one or more data masks onto the medium with a plane wave object beam from a laser light source operating at a record wavelength, propagating a reference beam at an incident angle to the medium to record the one or more data masks on the medium, and altering the incident angle of the reference beam for each of the one or more data masks, wherein each of the one or more data masks recorded on said medium can be read bit by bit using a laser light source operating in a readout range of wavelengths different from the record wavelength.

    摘要翻译: 根据一个方面,用于制造全息存储介质的方法包括向一个或多个数据掩模提供要被记录的数据,用来自操作在记录上的激光光源的平面波对象光将该一个或多个数据掩模照射到介质上 以介质的入射角传播参考光束,以在介质上记录一个或多个数据掩模,并且改变每个所述一个或多个数据掩模的参考光束的入射角,其中, 可以使用在与记录波长不同的波长的读出范围内工作的激光光源逐点读取在所述介质上记录的更多的数据掩模。

    Holographic storage medium having enhanced temperature operating range and method of manufacturing the same
    26.
    发明授权
    Holographic storage medium having enhanced temperature operating range and method of manufacturing the same 有权
    具有增强的温度操作范围的全息存储介质及其制造方法

    公开(公告)号:US06348983B1

    公开(公告)日:2002-02-19

    申请号:US09589948

    申请日:2000-06-08

    IPC分类号: G03H102

    摘要: A holographic storage medium, a method of manufacturing the holographic storage medium and a holographic storage device incorporating the storage medium. In one embodiment, the holographic storage medium includes: (1) first and second spaced-apart substrates, the first substrate being plastic and (2) a photopolymer core located between said first and second substrates and having a coefficient of thermal expansion such that said first and second substrates and said photopolymer core cooperate to respond substantially isotropically to a change in temperature.

    摘要翻译: 一种全息存储介质,一种制造该全息存储介质的方法和一种包含存储介质的全息存储装置。 在一个实施例中,全息存储介质包括:(1)第一和第二间隔开的基板,第一基板是塑料和(2)位于所述第一和第二基板之间的光聚合物芯,并具有热膨胀系数,使得所述 第一和第二基底和所述光聚合物核心协调以基本上各向同性地响应于温度变化。

    Disk-based optical correlator and method
    27.
    发明授权
    Disk-based optical correlator and method 失效
    基于磁盘的光学相关器和方法

    公开(公告)号:US5339305A

    公开(公告)日:1994-08-16

    申请号:US930095

    申请日:1992-08-14

    摘要: The correlation speed and storage capacity of an optical disk-based correlator is enhanced by employing a thick (several hundred micron) photo- polymeric film (or other thick holographic media) on the disk as the recording media to permit volume holography and angular multiplexing of holograms in each spot on the disk. For example, if 100 holograms are multiplexed at one spot, 100 1-dimensional correlation functions can be read in parallel off of the disk while illuminating it with a single input image. The diffraction of the image beam by the recorded holographic patterns occurs at the holograms in the disk. The full 2-dimensional correlation function for each one of the holograms stored in a given spot on the disk is generated line-by-line a follows: By imaging in the along-track direction of the disk and Fourier transforming in the radial direction of the disk when both recording the template image hologram and presenting the input image to the recorded hologram, disk rotation generates the two-dimensional correlation functions between stored template images and the input image. All correlation functions for holograms angularly multiplexed at a given spot are generated line-by-line and detected in parallel along adjacent line detectors in the off-disk correlation plane.

    摘要翻译: 通过在盘上使用厚(几百微米)的光聚合物膜(或其他厚的全息介质)作为记录介质来增强基于光盘的相关器的相关速度和存储容量,以允许体积全息术和角多路复用 全息图在磁盘上的每个点。 例如,如果100个全息图在一个点被多路复用,则100个一维相关函数可以在与单个输入图像一起照亮的同时从盘读出。 通过记录的全息图案的图像束的衍射发生在盘中的全息图。 存储在磁盘上给定点上的每个全息图的完整2维相关函数如下逐行生成:通过在盘的沿磁道方向成像并沿径向的傅里叶变换 当记录模板图像全息图并将输入图像呈现给所记录的全息图时,盘的旋转产生存储的模板图像与输入图像之间的二维相关函数。 在给定点上角度复用的全息图的所有相关函数被逐行生成并且在离盘相关平面中沿着相邻线检测器并行检测。

    Methods and systems for recording to holographic storage media
    28.
    发明授权
    Methods and systems for recording to holographic storage media 有权
    用于记录到全息存储介质的方法和系统

    公开(公告)号:US08786923B2

    公开(公告)日:2014-07-22

    申请号:US11131601

    申请日:2005-05-17

    摘要: According to one aspect and example, a method for recording holographic media and/or holographic master data masks includes recording at least a first hologram or information layer with a first holographic medium (e.g., a “submaster”) and recording at least a second information layer with a second holographic medium (e.g., a second “submaster”). The first information layer and the second information layer from the first and second holographic media are then sequentially reconstructed and stored with a single holographic master medium (e.g., a “master”). The holographic master may then be used to record the stored first and second information layers into additional holographic media, for example, into HROM devices or the like.

    摘要翻译: 根据一个方面和示例,用于记录全息介质和/或全息主数据掩模的方法包括至少记录第一全息图或信息层与第一全息介质(例如,“主管”),并记录至少第二信息 层,其具有第二全息介质(例如,第二“主管”)。 然后,第一和第二全息介质的第一信息层和第二信息层被顺序地重构并用单个全息主介质(例如,“主”)存储。 然后可以使用全息主机将所存储的第一和第二信息层记录到另外的全息介质中,例如记录到HROM设备等中。

    Holographic recording system having a relay system
    29.
    发明授权
    Holographic recording system having a relay system 失效
    具有中继系统的全息记录系统

    公开(公告)号:US08199388B2

    公开(公告)日:2012-06-12

    申请号:US11132002

    申请日:2005-05-17

    IPC分类号: G03H1/04 G03H1/16

    摘要: According to one aspect and example, a holographic recording system includes a light source, an object for modulating an object beam from the light source, and a relay system adapted to magnify (positive or negative) the modulated beam (e.g., an image of the object) to an output image. The object may include an SLM operable to modulate the object beam with an information layer comprising a plurality of data pages. The output image is directed to the holographic storage medium, where a reference beam is also directed, to record the resulting interference pattern. Additionally, the relay system converges the output image to an output Fourier plane, which may be disposed within the holographic storage medium. A filter may be placed at an intermediate Fourier plane located prior to the output Fourier plane, and a phase mask may be placed at the position of the output image.

    摘要翻译: 根据一个方面和示例,全息记录系统包括光源,用于调制来自光源的物体光束的物体,以及适于放大(正或负)调制光束的中继系统(例如, 对象)到输出图像。 该对象可以包括可操作以利用包括多个数据页的信息层来调制对象光束的SLM。 输出图像被引导到参考光束也被引导的全息存储介质,以记录所得到的干涉图案。 另外,中继系统将输出图像收敛到可设置在全息存储介质内的输出傅立叶平面。 滤波器可以放置在位于输出付里叶平面之前的中间傅立叶平面处,并且相位掩模可以被放置在输出图像的位置。

    EXTERNAL CAVITY LASER WITH A TUNABLE HOLOGRAPHIC ELEMENT
    30.
    发明申请
    EXTERNAL CAVITY LASER WITH A TUNABLE HOLOGRAPHIC ELEMENT 审中-公开
    外部激光与可控制的全息元件

    公开(公告)号:US20090092160A1

    公开(公告)日:2009-04-09

    申请号:US12334881

    申请日:2008-12-15

    IPC分类号: H01S3/10

    CPC分类号: H01S5/141

    摘要: Embodiments of systems and methods are provided for a tunable laser device. The tunable laser device may include a tunable Bragg reflector that allows its wavelength to be tuned via temperature and/or pressure. This Bragg reflector may include holographic material in which a Bragg grating may be formed comprising parallel fringes of alternating index of refractions. Temperature and/or pressure changes may be effected in the Bragg reflector by, for example, a thermoelectric cooler and/or piezo transducer.

    摘要翻译: 为可调激光器件提供了系统和方法的实施例。 可调激光器件可以包括可调谐布拉格反射器,其允许其波长通过温度和/或压力调节。 该布拉格反射器可以包括其中可以形成布拉格光栅的全息材料,其包括具有交替的折射率的平行条纹。 可以通过例如热电冷却器和/或压电换能器在布拉格反射器中实现温度和/或压力变化。