System and method for holographic storage with optical folding
    22.
    发明授权
    System and method for holographic storage with optical folding 失效
    具有光学折叠的全息存储系统和方法

    公开(公告)号:US06831762B2

    公开(公告)日:2004-12-14

    申请号:US10256797

    申请日:2002-09-27

    IPC分类号: G03H116

    摘要: A system for recording and reading out holograms in a storage medium including a pattern encoder, a first fourier transform lens with a focal length f1, a second fourier transform lens with a focal length f2, a detector array, and a first and second prism. The first prism is located between the pattern encoder and the first fourier transform lens, wherein the optical length between the pattern encoder and the first fourier transform lens through the first prism is equal to a back focal length BFL1. The second prism located between the second fourier transform lens f2 and the detector array, wherein the optical path length between the second fourier transform lens and the detector array through the second prism is equal to a back focal length BFL2.

    摘要翻译: 一种用于在包括图案编码器,具有焦距f1的第一傅里叶变换透镜,具有焦距f2的第二傅立叶变换透镜,检测器阵列以及第一和第二棱镜的存储介质中记录和读出全息图的系统。 第一棱镜位于图案编码器和第一傅里叶变换透镜之间,其中图案编码器和通过第一棱镜的第一傅立叶变换透镜之间的光学长度等于后焦距BFL1。 位于第二傅里叶变换透镜f2和检测器阵列之间的第二棱镜,其中第二傅立叶变换透镜与通过第二棱镜的检测器阵列之间的光程长度等于后焦距BFL2。

    Holographic drive head and component alignment
    23.
    发明授权
    Holographic drive head and component alignment 有权
    全息驱动头和组件对准

    公开(公告)号:US08305700B2

    公开(公告)日:2012-11-06

    申请号:US11440359

    申请日:2006-05-25

    IPC分类号: G02B7/02

    摘要: The present invention relates to embodiments of: (1) a unitary holographic drive head assembly mounting structure; (2) an assembly comprising a unitary holographic drive head assembly mounting structure and a plurality of holographic drive head components and/or subassemblies; (3) a subassembly comprising a spatial light modulator, detector array, and a beam splitter; (4) a device comprising a spatial light modulator and a physical aperture positioned over or an imaged aperture projected onto the photoactive area of the spatial light modulator; (5) a system for optically aligning or pointing a laser in a holographic drive head assembly; (6) a light source subassembly comprising a laser, a fiber coupling lens; and an optical fiber having a fiber connector ready output end; and (7) a light source subsystem comprising a laser source, beam conditioning optics, fiber coupling optics for receiving the conditioned light beam, and a fiber optic connector for receiving the conditioned light beam from the fiber coupling optics.

    摘要翻译: 本发明涉及以下实施例:(1)一体式全息驱动头组件安装结构; (2)组件,其包括单一全息驱动头组件安装结构和多个全息驱动头组件和/或子组件; (3)包括空间光调制器,检测器阵列和分束器的子组件; (4)一种装置,包括空间光调制器和位于所述空间光调制器的光活性区域上的成像孔的物理孔; (5)用于在全息驱动头组件中光学对准或指向激光的系统; (6)一种光源子组件,包括激光器,光纤耦合透镜; 以及具有光纤连接器就绪输出端的光纤; 以及(7)光源子系统,包括激光源,光束调节光学器件,用于接收经调节的光束的光纤耦合光学器件,以及用于从光纤耦合光学器件接收经调节的光束的光纤连接器。

    Method and system for increasing holographic data storage capacity using irradiance-tailoring element
    24.
    发明授权
    Method and system for increasing holographic data storage capacity using irradiance-tailoring element 有权
    使用辐照度调整元件增加全息数据存储容量的方法和系统

    公开(公告)号:US07813017B2

    公开(公告)日:2010-10-12

    申请号:US11319425

    申请日:2005-12-29

    IPC分类号: G03H1/28

    摘要: A method and system is disclosed for increasing the holographic storage capacity of a holographic recording medium using an irradiance-tailoring (e.g., optical) element by changing the irradiance profile of the modulated object beam (e.g., by imparting motion to an irradiance-tailoring element and/or the holographic recording medium and/or by reconfiguring (e.g., periodically) the phase profile of a stationary irradiance-tailoring (e.g., optical) element) to minimize the effects of fixed-pattern noise buildup from occurring in the holographic recording medium.

    摘要翻译: 公开了一种方法和系统,用于通过改变调制对象光束的辐照度分布(例如通过将运动赋予辐照度调节元件)来增加使用辐照度(例如光学)元件的全息记录介质的全息存储容量 和/或全息记录介质和/或通过重新配置(例如,周期性地)固定辐照度(例如光学元件)的相位轮廓),以最小化在全息记录介质中发生的固定图案噪声积聚的影响 。

    Semiconductor laser device and hologram apparatus using the semiconductor laser device
    25.
    发明申请
    Semiconductor laser device and hologram apparatus using the semiconductor laser device 审中-公开
    使用半导体激光器件的半导体激光器件和全息图设备

    公开(公告)号:US20070019692A1

    公开(公告)日:2007-01-25

    申请号:US11204398

    申请日:2005-08-16

    IPC分类号: H01S3/04 H01S3/08

    摘要: A semiconductor laser device, with a semiconductor laser element operable to oscillate and output a laser beam, is provided with a heat generation unit operable to generate heat so as to regulate the temperature of the semiconductor laser element, a laser beam splitting unit operable to split a laser beam, oscillated and output from the semiconductor laser element, into first and second beams each forming an optical path different from each other, and a heat generation control unit operable to control the amount of heat generated by the heat generation unit so as to maintain constant a fringe spacing between interference fringes with a plurality of fringes obtained as a result of the interference between the first and second beams.

    摘要翻译: 具有可操作以振荡和输出激光束的半导体激光元件的半导体激光装置设置有可发生热量以便调节半导体激光元件的温度的发热单元,可操作地分裂的激光束分离单元 从半导体激光元件振荡并输出的激光束分别形成彼此不同的光路的第一和第二光束;以及发热控制单元,其可操作以控制由发热体单元产生的热量,从而 在干涉条纹与作为第一和第二光束之间的干涉的结果获得的多个条纹之间保持恒定的条纹间距。

    Hologram apparatus and hologram recording and playback method
    26.
    发明申请
    Hologram apparatus and hologram recording and playback method 有权
    全息设备和全息记录和回放方法

    公开(公告)号:US20070019267A1

    公开(公告)日:2007-01-25

    申请号:US11204400

    申请日:2005-08-16

    IPC分类号: G03H1/28

    摘要: A hologram recording and playback method comprises establishing in advance a test region adapted to record a piece of test data for each of a reference incidence angle and a plurality of stepped incidence angles of a recording reference beam in a recording medium, successively setting an incidence angle of the recording reference beam equal to the reference incidence angle or one of the plurality of the stepped incidence angles, successively recording in the test region each piece of the test data, causing a playback reference beam to be applied to the test region at the same incidence angle as the reference incidence angle to globally play back all the pieces of the test data, selecting the data with the maximum diffraction efficiency, and correcting the incidence angles of the recording reference beam and the playback reference beam based on the difference between the reference incidence angle or one of the plurality of the stepped incidence angles corresponding to the selected data and the reference incidence angle.

    摘要翻译: 全息图记录和再现方法包括:将记录参考光束的参考入射角和多个阶梯入射角中的每一个记录在记录介质中的测试数据的预先建立的测试区域,依次设置入射角 所述记录参考光束等于参考入射角或多个阶梯入射角中的一个,在测试区域中连续记录每条测试数据,使得将重放参考光束施加到相同的测试区域 入射角作为参考入射角,以全局地播放测试数据的所有部分,选择具有最大衍射效率的数据,并且基于参考的差异来校正记录参考光束和重放参考光束的入射角 入射角或与所选数据对应的多个阶梯入射角中的一个 和参考入射角。