公开(公告)号：US20100328750A1

公开(公告)日：2010-12-30

申请号：US12720706

申请日：2010-03-10

申请人： Ji-deog KIM ,  Yong-hwa PARK ,  Yong-jun PARK ,  Chang-kwon HWANGBO ,  Jang-hoon LEE ,  Jin-joo KIM

发明人： Ji-deog KIM ,  Yong-hwa PARK ,  Yong-jun PARK ,  Chang-kwon HWANGBO ,  Jang-hoon LEE ,  Jin-joo KIM

IPC分类号： G02F1/03

CPC分类号： G02F1/21 ,  G02F2001/213

摘要： Provided are a high-speed optical modulator and a method of modulating light by using the same. The optical modulator includes first and second resonance cavities that are sequentially stacked on a transparent substrate, wherein the first and second resonance cavities each include an electric-optical layer. According to the method, first and second voltages having different sizes are simultaneously applied respectively to the first and second resonance cavities, and then for the other configuration of the modulator mutually interchanged voltages are applied.

摘要翻译： 提供了一种高速光学调制器和通过使用它们来调制光的方法。 光调制器包括依次层叠在透明基板上的第一和第二谐振腔，其中第一和第二谐振腔各自包括电光层。 根据该方法，具有不同尺寸的第一和第二电压分别同时施加到第一和第二共振腔，然后对于调制器的另一配置相互互换的电压被施加。

公开(公告)号：US20080180768A1

公开(公告)日：2008-07-31

申请号：US11951569

申请日：2007-12-06

申请人： Ji-deog KIM ,  Jong-su YI

发明人： Ji-deog KIM ,  Jong-su YI

IPC分类号： G03H1/26 ,  G02B5/32

CPC分类号： G02B5/32 ,  G11B7/0065 ,  G11B7/1353 ,  G11B7/1381

摘要： Provided are a photo detecting device and a holographic data reproducing apparatus for a multilayered holographic data storage medium using the photo detecting device. The holographic data reproducing apparatus, which can reproduce a large amount of information recorded in multiple layers of a holographic data storage medium, includes a focusing lens focusing a plurality reproducing signal beams generated when a reference beam is incident on the holographic data storage medium and having focal points formed at different locations on the same optical axis, a volume hologram device generating secondary signal beams which travel in different directions by diffracting a plurality of reproducing signal beams having different focal points, a fourier lens focusing the secondary signal beams generated from the volume hologram device, and an optical detector array detecting the secondary signal beams focused by the fourier lens.

摘要翻译： 提供一种使用该光检测装置的多层全息数据存储介质的光检测装置和全息数据再现装置。 可以再现记录在全息数据存储介质的多层中的大量信息的全息数据再现装置包括聚焦透镜，其聚焦当参考光束入射到全息数据存储介质上时产生的多个再现信号光束，并且具有 形成在相同光轴上的不同位置处的焦点，体积全息图装置，通过衍射具有不同焦点的多个再现信号光束来产生沿不同方向行进的辅助信号光束;聚焦从体积产生的辅助信号光束的傅立叶透镜 全息图装置和检测由傅里叶透镜聚焦的辅助信号光束的光学检测器阵列。