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1. 发明申请

WO2010136340A1 HOLOGRAPHIC STORAGE SYSTEM USING HOMODYNE DETECTION 审中-公开
标题翻译：使用HOMODYNE检测的全息存储系统
公开(公告)号：WO2010136340A1
公开(公告)日：2010-12-02
申请号：PCT/EP2010/056580
申请日：2010-05-12
申请人： THOMSON LICENSING , PRZYGODDA, Frank , MALKI, Oliver , TRAUTNER, Heiko
发明人： PRZYGODDA, Frank , MALKI, Oliver , TRAUTNER, Heiko
IPC分类号： G11B7/125 , G11B7/135 , G11B7/0065
CPC分类号： G11B7/1392 , G03H1/02 , G03H1/22 , G03H1/2249 , G03H1/2286 , G03H2001/0212 , G03H2222/24 , G11B7/0065 , G11B7/127 , G11B7/1384
摘要： The present invention relates to an apparatus (1) for reading from holographic storage media (13) using a homodyne detection scheme. According to the invention, the apparatus (1) has a light source (2') for generating a reference beam (5) and a local oscillator beam (20), an objective lens (12) for focusing the reference beam (5) into the holographic storage medium in order to generate a reconstructed object beam (14), and an optical path length controller (33, 35) for varying the path length of the local oscillator beam (25) or the reference beam (5). The optical path length controller (33, 35) is adapted to vary the path length of the local oscillator beam (25) or the reference beam (5) by a quarter of the wavelength of the local oscillator beam (25) in order to obtain two quadrature images.
摘要翻译：本发明涉及一种使用零差检测方案从全息存储介质（13）读取的装置（1）。根据本发明，装置（1）具有用于产生参考光束（5）和本地振荡器光束（20）的光源（2'），用于将参考光束（5）聚焦的物镜（12）全息存储介质，以便产生重建的物体光束（14），以及用于改变本地振荡器光束（25）或参考光束（5）的路径长度的光程长度控制器（33,35）。光路长度控制器（33,35）适于将本地振荡器光束（25）或参考光束（5）的路径长度改变本地振荡器光束（25）的波长的四分之一以获得两个正交图像。

2. 发明申请

WO2010136341A1 HOLOGRAPHIC STORAGE SYSTEM WITH REDUCED NOISE 审中-公开
标题翻译：具有减少噪声的全息存储系统
公开(公告)号：WO2010136341A1
公开(公告)日：2010-12-02
申请号：PCT/EP2010/056581
申请日：2010-05-12
申请人： THOMSON LICENSING , MALKI, Oliver , PRZYGODDA, Frank , TRAUTNER, Heiko
发明人： MALKI, Oliver , PRZYGODDA, Frank , TRAUTNER, Heiko
IPC分类号： G11B7/0065
CPC分类号： G11B7/0065 , G03H1/22 , G03H1/2249 , G03H2227/03
摘要： The present invention relates to an apparatus (1) and a method for reading from holographic storage media (13), and more specifically to an apparatus (1) and a method for reading from holographic storage media (13) with reduced noise. According to the invention, a light source (2) is provided for generating at least a reference beam (5), an objective lens (12) for focusing the reference beam (5) into the holographic storage medium in order to generate a reconstructed object beam (14), and a beam splitter (21) for generating a local oscillator beam (20) for homodyne detection of the reconstructed object beam (14). One or more optical elements (12, 15) within the optical path of the reference beam (5) or the reconstructed object beam are mounted on at least one mechanical modulator (32), which oscillates with an oscillation frequency.
摘要翻译：本发明涉及一种用于从全息存储介质（13）读取的装置（1）和方法，更具体地涉及一种具有降低噪声的全息存储介质（13）的装置（1）和方法。根据本发明，提供光源（2），用于至少产生参考光束（5），用于将参考光束（5）聚焦到全息存储介质中的物镜（12），以便产生重建对象光束（14）和分束器（21），用于产生用于重建物体光束（14）的零差检测的本地振荡器光束（20）。在参考光束（5）或重构物体光束的光路内的一个或多个光学元件（12,15）安装在至少一个以振荡频率振荡的机械调制器（32）上。

3. 发明申请

WO2006094898A2 HOLOGRAPHIC RECORDING MEDIUM AND PICKUP FOR THIS MEDIUM 审中-公开
标题翻译：全息记录介质和拾取此介质
公开(公告)号：WO2006094898A2
公开(公告)日：2006-09-14
申请号：PCT/EP2006060136
申请日：2006-02-21
申请人： THOMSON LICENSING , TRAUTNER HEIKO , RICHTER HARTMUT , BRAEUER DIETMAR , BALLWEG CHRISTOF
发明人： TRAUTNER HEIKO , RICHTER HARTMUT , BRAEUER DIETMAR , BALLWEG CHRISTOF
IPC分类号： G11B7/0065 , G11B7/007 , G11B7/09 , G11B7/095 , G11B7/24 , G11B7/24041 , G11B7/24044
CPC分类号： G11B7/0065 , G03H1/0252 , G03H1/0256 , G11B7/00745 , G11B7/00781 , G11B7/0956 , G11B7/24041 , G11B7/24044
摘要： The present invention relates to a holographic recording medium (9) adapted to store additional information for the recorded holograms, and to a holographic pickup (1) for a holographic storage system for use with the holographic recording medium (9) . According to the invention, the holographic recording medium (9) has a holographic layer (94) for storing holograms and a servo layer (92) for positioning a light beam for reading and/or recording of a hologram relative to the holographic recording medium, wherein the servo layer (92) is recordable or rewritable. A holographic pickup (1) for use with such a holographic recording medium (9) includes a light source (13) for recording additional data in the servo layer (92) of the holographic recording medium (9) .
摘要翻译：本发明涉及一种适合于存储记录的全息图的附加信息的全息记录介质（9），并涉及一种用于与全息记录介质（9）一起使用的全息存储系统的全息拾取器（1）。根据本发明，全息记录介质（9）具有用于存储全息图的全息层（94）和用于定位用于全息图相对于全息记录介质的读取和/或记录的光束的伺服层（92）其中伺服层（92）是可记录或可重写的。用于这种全息记录介质（9）的全息拾取器（1）包括用于将附加数据记录在全息记录介质（9）的伺服层（92）中的光源（13）。

4. 发明申请

WO2010102907A1 MULTILAYER COAXIAL HOLOGRAPHIC STORAGE SYSTEM 审中-公开
标题翻译：多层同轴全息存储系统
公开(公告)号：WO2010102907A1
公开(公告)日：2010-09-16
申请号：PCT/EP2010/052419
申请日：2010-02-25
申请人： THOMSON LICENSING , KNITTEL, Joachim , TRAUTNER, Heiko
发明人： KNITTEL, Joachim , TRAUTNER, Heiko
IPC分类号： G11B7/0065 , G11B7/135
CPC分类号： G11B7/0065 , G11B7/083 , G11B7/1353 , G11B7/1376 , G11B2007/0013
摘要： The present invention relates to an apparatus (1) for reading from and/or writing to a multilayer holographic storage medium (12) with a coaxial arrangement of a reference beam (2a) and an object beam (2b) or a reconstructed object beam (2c). The apparatus (1) has an objective lens (11) for focusing the reference beam (2a) into the multilayer holographic storage medium (12) such that the reference beam (2a) has a focal point behind or in front of a reflective layer (13) of the multilayer holographic storage medium (12), and a 4f imaging system (14, 16) with a movable lens (14) for re-collimating a reconstructed object beam (2c). For re-collimating the reconstructed object beam (2c) the apparatus (1) is adapted to shift the movable lens (14) of the 4f imaging system (14, 16) by substantially twice the shift of the objective lens (11) necessary for addressing a specific layer of the multilayer holographic storage medium (12).
摘要翻译：本发明涉及一种用于使用参考光束（2a）和物体光束（2b）或重建物体光束（2b）的同轴布置从多层全息存储介质（12）读取和/或写入的装置（1） 2C）。装置（1）具有用于将参考光束（2a）聚焦到多层全息存储介质（12）中的物镜（11），使得参考光束（2a）具有在反射层之后或之前的焦点和多层全息存储介质（12）的图13（d），以及具有用于重新校准重构对象光束（2c）的可移动透镜（14）的4f成像系统（14,16）。为了重新准直重建的物体光束（2c），装置（1）适于将4f成像系统（14,16）的可移动透镜（14）移动大约两倍的物镜（11）的移位，寻址多层全息存储介质（12）的特定层。

5. 发明申请

WO2006094898A3 HOLOGRAPHIC RECORDING MEDIUM AND PICKUP FOR THIS MEDIUM 审中-公开
公开(公告)号：WO2006094898A3
公开(公告)日：2006-09-14
申请号：PCT/EP2006/060136
申请日：2006-02-21
申请人： THOMSON LICENSING , TRAUTNER, Heiko , RICHTER, Hartmut , BRAEUER, Dietmar , BALLWEG, Christof
发明人： TRAUTNER, Heiko , RICHTER, Hartmut , BRAEUER, Dietmar , BALLWEG, Christof
IPC分类号： G11B7/0065 , G11B7/007 , G11B7/09 , G11B7/24 , G11B7/095
摘要： The present invention relates to a holographic recording medium (9) adapted to store additional information for the recorded holograms, and to a holographic pickup (1) for a holographic storage system for use with the holographic recording medium (9) . According to the invention, the holographic recording medium (9) has a holographic layer (94) for storing holograms and a servo layer (92) for positioning a light beam for reading and/or recording of a hologram relative to the holographic recording medium, wherein the servo layer (92) is recordable or rewritable. A holographic pickup (1) for use with such a holographic recording medium (9) includes a light source (13) for recording additional data in the servo layer (92) of the holographic recording medium (9) .

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