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    • 5. 发明授权
    • Method and apparatus for optical data storage using non-linear heating by excited state absorption for the alteration of pre-formatted holographic gratings
    • 用于通过激发态吸收的非线性加热来改变预格式化全息光栅的光学数据存储的方法和装置
    • US06322931B1
    • 2001-11-27
    • US09364271
    • 1999-07-29
    • Brian H. CumpstonJoseph W. PerrySeth R. Marder
    • Brian H. CumpstonJoseph W. PerrySeth R. Marder
    • G03H112
    • B82Y10/00G02F1/3523G11B7/0045G11B7/00455G11B7/0065G11B7/245
    • The present invention comprises an optical data storage system utilizing a host material and molecules that exhibit non-linear absorption dissolved therein. The non-linear absorbing molecules allow for energy in the form of heat to be generated during the optical data storage process. This heat provides for localized alterations to occur in the pre-formatted holographic grating. The non-linear feature of these molecules allow for alterations to occur at specific depths and locations within the storage medium while limiting the secondary effects on other locations within the storage medium. The molecules exhibiting non-linear absorption may be selected from the group of molecules exhibiting two-photon absorption or reverse saturable absorption. The invention also comprises a method for preparing the optical storage medium, an optical data storage device comprising the optical data storage medium and having a format hologram stored within the medium. Additionally, the invention comprises an optical data storage system and method for use thereof wherein the storage system uses the optical data storage medium described above when altering a pre-formatted holographic grating in a localized region by non-linear thermal disruption of the grating. Another embodiment of the present invention comprises an optical data retrieval system embodying the optical data storage device described above and a method for retrieving the format hologram stored on the optical data storage device of the present invention.
    • 本发明包括利用主体材料的光学数据存储系统和在其中显示非线性吸收的分子。 非线性吸收分子允许在光学数据存储过程期间产生热的能量。 该热量提供在预格式化全息光栅中发生的局部变化。 这些分子的非线性特征允许在存储介质中的特定深度和位置处发生变化,同时限制对存储介质内的其它位置的二次效应。 显示非线性吸收的分子可以选自呈现双光子吸收或反饱和吸收的分子组。 本发明还包括一种用于制备光学存储介质的方法,包括光学数据存储介质并且具有存储在介质内的格式全息图的光学数据存储设备。 另外,本发明包括光学数据存储系统及其使用方法,其中当通过光栅的非线性热破坏来改变局部区域中的预格式化全息光栅时,存储系统使用上述光学数据存储介质。 本发明的另一实施例包括体现上述光学数据存储装置的光学数据检索系统以及用于检索存储在本发明的光学数据存储装置上的格式全息图的方法。
    • 9. 发明授权
    • Electrooptic polymer voltage sensor and method of manufacture thereof
    • 电光聚合物电压传感器及其制造方法
    • US5255428A
    • 1993-10-26
    • US680651
    • 1991-04-03
    • Allan GottscheJoseph W. Perry
    • Allan GottscheJoseph W. Perry
    • G01R15/24G02F1/061H01B19/00G02F1/00
    • G02F1/061G01R15/241G02F2202/022G02F2202/04Y10T29/49226
    • An optical voltage sensor utilizing an electrooptic polymer is disclosed for application to electric power distribution systems. The sensor, which can be manufactured at low cost in accordance with a disclosed method, measures voltages across a greater range than prior art sensors. The electrooptic polymer, which replaces the optical crystal used in prior art sensors, is sandwiched directly between two high voltage electrodes. Voltage is measured by fiber optical means, and no voltage division is required. The sample of electrooptic polymer is fabricated in a special mold and later mounted in a sensor housing. Alternatively, mold and sensor housing may be identical. The sensor housing is made out of a machinable polymeric material and is equipped with two opposing optical windows. The optical windows are mounted in the bottom of machined holes in the wall of the mold. These holes provide for mounting of the polarizing optical components and for mounting of the fiber optic connectors. One connecting fiber is equipped with a light emitting diode as a light source. Another connecting fiber is equipped with a photodiode as a detector.
    • 公开了一种使用电光聚合物的光电压传感器,用于配电系统。 根据所公开的方法可以以低成本制造的传感器测量比现有技术传感器更大范围内的电压。 替代现有技术传感器中使用的光学晶体的电光聚合物直接夹在两个高压电极之间。 电压由光纤装置测量,不需要分压。 电光聚合物的样品在特殊的模具中制造,然后安装在传感器外壳中。 或者,模具和传感器壳体可以是相同的。 传感器外壳由可加工的聚合材料制成,并配有两个相对的光学窗口。 光学窗口安装在模具壁上的加工孔的底部。 这些孔提供偏振光学部件的安装和光纤连接器的安装。 一个连接光纤配备有作为光源的发光二极管。 另一个连接光纤配有光电二极管作为检测器。