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1.发明授权Heterodyne-wavelength division demultiplexing for optical pick-ups, microscopy, tomography telecommunication and lidar 失效用于光学拾音器，显微镜，层析成像电信和激光雷达的异步波分复用公开(公告)号：US06577417B1
公开(公告)日：2003-06-10
申请号：US09642204
申请日：2000-08-19
申请人： Jehad Khoury
发明人： Jehad Khoury
IPC分类号： H04J1402
CPC分类号： G02F2/002 , G02B6/29322 , G02B6/29395 , H04B10/69 , H04J14/02
摘要： A single tunable filter WDM Bragg cell is employed to both wavelength demultiplex and detect incoming light beams by the application of a DC tuning signal for wavelength selection, together with an AC component for facilitating detection of data impressed upon selected incoming demultiplexed beams, all in the optical domain, in contrast with the electrical domain, to enhance processing speed. The AC component can perform hetrodyne detection for TV and telephone analog communication systems, or can detect digital signals for DSL internet communication systems, and cost savings result from the use of a single compact cell tuned by the composite signal permitting demultiplexing and detecting in one cell component. The resulting versatility enables use of the single cell in WDM and TDM, WDM and spread spectrum, and WDM packet switching and TCP/IP header digital address recognition systems.
摘要翻译： 采用单个可调谐滤波器WDM布拉格单元通过应用用于波长选择的DC调谐信号来波长解复用和检测入射光束，以及AC分量，以便于检测在所选择的输入解复用光束上印像的数据，全部在 光域，与电域相反，以提高处理速度。 AC组件可以对电视和电话模拟通信系统进行检测，或者可以检测DSL互联网通信系统的数字信号，并且通过使用由复合信号调制的单个紧凑小区可以节省成本，从而允许在一个小区中解复用和检测 零件。 所产生的多功能性使得能够在WDM和TDM，WDM和扩展频谱以及WDM分组交换和TCP / IP报头数字地址识别系统中使用单个小区。
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公开(公告)号：US06229649B1
公开(公告)日：2001-05-08
申请号：US08319143
申请日：1994-10-04
申请人： Charles L. Woods , Jehad Khoury , Jack Fu
发明人： Charles L. Woods , Jehad Khoury , Jack Fu
IPC分类号： G02B2746
CPC分类号： G06K9/58 , G02B27/46 , G06E3/005 , Y10S359/90
摘要： A first lens produces a Fourier transform of the wavefront distorted optical image at the Fourier transform plane. A phase encoded filter is positioned at the transform plane and a second filter is tandemly positioned with respect to the first filter, the second filter having a transmittance which is statistically similar to the reciprocal spatial frequency spectrum of the Fourier transform of the distortion function, to in turn produce an intermediate signal at the transform plane, which is now Fourier transformed by a second lens to recover the optical image having a substantially reduced degree of distortion.
摘要翻译： 第一透镜在傅里叶变换平面处产生波前失真光学图像的傅里叶变换。 相位编码滤波器位于变换平面处，并且第二滤波器相对于第一滤波器串联地布置，第二滤波器具有与失真函数的傅里叶变换的相互空间频谱统计学相似的透射率，到 反过来在变换平面产生中间信号，该中间信号现在由第二透镜进行傅立叶变换以恢复具有显着降低的失真度的光学图像。
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公开(公告)号：US5594586A
公开(公告)日：1997-01-14
申请号：US236936
申请日：1994-05-02
申请人： Jehad Khoury , Charles L. Woods , Mark Cronin-Golomb , Jack Fu
发明人： Jehad Khoury , Charles L. Woods , Mark Cronin-Golomb , Jack Fu
摘要： Limiting quadratic processing and compansion in photorefractive two beam coupling is disclosed. Two-beam coupling in photorefractive barium titanate employs the imaged intensity of the signal to amplify the reference beam while maintaining the phase of the reference beam. The phase distorted signal beam is converted to that of the controlled phase of the reference beam. The high pump limit of amplification in this two-beam coupling device produces an amplitude compressed output to reduce multiplicative noise. Lost contrast of the image is thereafter restored. Beam clean-up of a non-intelligence bearing beam can be carried out by a similar process; a low pass filter consisting of a pinhole plate can be used in place of the second photorefractive crystal in the Fourier plane and only the planar wavefront portion will pass through the pinhole and may be collimated by a lens to provide a cleaned planar output beam.
摘要翻译： 公开了限制光折射双光束耦合的二次加工和压缩。 光折射钛酸钡中的双光束耦合采用成像的信号强度来放大参考光束，同时保持参考光束的相位。 相位失真信号光束被转换为参考光束的受控相位。 在这种双光束耦合器件中，放大的高泵浦极限值产生幅度压缩输出以减少乘法噪声。 此后，图像的失真对比度恢复。 非智能轴承梁的梁清理可以通过类似的过程进行; 可以使用由针孔板组成的低通滤波器代替傅立叶平面中的第二光折射晶体，并且仅平面波前部分将穿过针孔并且可以被透镜准直以提供清洁的平面输出光束。
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公开(公告)号：US5903390A
公开(公告)日：1999-05-11
申请号：US726253
申请日：1996-10-04
摘要： An all optical photorefractive holographic joint transform correlator provides a first correlation plane output port using two-beam coupling, and a second correlation plane output port employing four-wave mixing. With appropriate input beam intensity ratios, the first port output is capable of high discrimination, while simultaneously the second port offers a low discrimination output.
摘要翻译： 全光学光折射全息联合变换相关器使用双光束耦合提供第一相关平面输出端口，以及采用四波混频的第二相关平面输出端口。 通过适当的输入光束强度比，第一端口输出能够高度辨别，同时第二端口提供低辨别输出。
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公开(公告)号：US6137601A
公开(公告)日：2000-10-24
申请号：US723485
申请日：1996-10-03
申请人： Jehad Khoury , Charles Woods
发明人： Jehad Khoury , Charles Woods
CPC分类号： G03H1/0248
摘要： A holographic grating is written into a photorefractive erasable holographic member and a light beam having a first wavelength which includes the joint power spectrum of a pair of joint images to be correlated is directed at the photorefractive member to partially erase the grating. A phase conjugate signal from the partially erased grating is then readout and Fourier transformed to produce the correlation output spots.
摘要翻译： 将全息光栅写入光折变可擦除全息元件中，并且具有包括要相关联的一对关节图像的联合功率谱的第一波长的光束指向光折射部件以部分地擦除光栅。 然后读出来自部分擦除的光栅的相位共轭信号，进行傅里叶变换以产生相关输出点。
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公开(公告)号：US07376068B1
公开(公告)日：2008-05-20
申请号：US11408249
申请日：2006-04-20
申请人： Jehad Khoury
发明人： Jehad Khoury
IPC分类号： G11B7/00
CPC分类号： G11B7/0065 , G02B5/1876 , G02B5/32 , G03H1/28 , G11B7/1353 , G11B7/24038
摘要： An extremely high resolution holographic lens is provided, comprising an interference pattern between light emitted from at least one tiny point source of light such as the tip of an optical fiber, having a diameter in the nanoscale region, and at least one plane or quasi-plane broad light beam. The holographic lens is employed for example in pickups for reading data off of, and writing data upon terabit optical storage mediums and nanoscale resolution microscopic media.
摘要翻译： 提供了一种非常高分辨率的全息透镜，其包括从至少一个微小的光源（例如具有纳米尺度区域中的直径的光纤的尖端）发射的光之间的干涉图案，以及至少一个平面或准 - 平面宽光束。 全息透镜用于例如用于读取数据的拾取器，并在三位计光学存储介质和纳米级分辨率显微介质上写入数据。
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公开(公告)号：US5859713A
公开(公告)日：1999-01-12
申请号：US726503
申请日：1996-10-07
申请人： Jehad Khoury , Philip Hemmer , Charles L. Woods , Jonathan Kane
发明人： Jehad Khoury , Philip Hemmer , Charles L. Woods , Jonathan Kane
CPC分类号： G03H1/0248
摘要： Image derogating optical noise due to light scattering of an object under examination, embedded in a light scattering medium, is substantially reduced by passing a modulated signal laser beam through the scattering medium, and interfering the emerging signal with a coherent modulated reference beam to produce a hologram in a photorefractive member of the object, which in turn is read out of the crystal by a third unmodulated coherent beam to retrieve a clear image of the object. A smart pixel image convertor light valve may be substituted for the photorefractive member.
摘要翻译： 嵌入在光散射介质中的被检查物体的光散射的图像减少光学噪声通过使调制的信号激光束通过散射介质而大大减少，并且用相干调制的参考光束干扰出现的信号以产生 全息图在物体的光折射构件中，其又通过第三未调制的相干光束从晶体读出，以检索物体的清晰图像。 智能像素图像转换器光阀可以代替光折射元件。
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公开(公告)号：US5684588A
公开(公告)日：1997-11-04
申请号：US726180
申请日：1996-10-04
申请人： Jehad Khoury , Philip Hemmer , Charles L. Woods , Jonathan Kane
发明人： Jehad Khoury , Philip Hemmer , Charles L. Woods , Jonathan Kane
CPC分类号： G03H1/0406 , G01B9/021 , G03H1/22 , G03H2001/0268 , G03H2001/2244 , G03H2260/36
摘要： Image derogating optical noise due to light scattering of an object under amination, embedded in, or positioned in front of a light scattering medium, is substantially reduced by employing a two-dimensional all optical phase sensitive holographic detector and vibrating the light scattering material at an ultra-sonic frequency to produce both signal sidebands and noise sidebands. Homodyne and hetrodyne techniques are used to filter out sidebands due to the light scattering noise and pass the desired signals, thereby to output a clear image of the object free of optical scatter noise. A smart pixel image converter light valve may be substituted for the photorefractive member.
摘要翻译： 通过采用二维全光学相位敏感全息检测器并将光散射材料振动在一个光学散射材料上，由于由被检查物体的光散射，嵌入或位于光散射介质前面而导致的图像减小光学噪声， 超声频率产生信号边带和噪声边带。 由于光散射噪声，使用“零差”和“杂音”技术对边带进行滤波，并通过所需信号，从而输出物体的清晰图像，无光散射噪声。 智能像素图像转换器光阀可以代替光折射元件。
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9.发明授权
公开(公告)号：US5493444A
公开(公告)日：1996-02-20
申请号：US238032
申请日：1994-04-28
摘要： An all-optical nonlinear joint transform correlator has been implemented for the first time without using a spatial light modulator and digital processing in the Fourier plane. The correlator utilizes energy transfer from two-beam coupling in the Fourier plane. A compressional nonlinearity in the hard-clipped regime is implemented by pumping a weak plane wave with the intense joint spectrum of the reference and signal images. Operation of this device rivals or exceeds that of the phase-only filter for detecting objects in cluttered noise. Experimental results are compared with both plane wave and beam propagation simulations.
摘要翻译： 全光非线性联合变换相关器首次实现，而不使用空间光调制器和傅立叶平面中的数字处理。 相关器利用傅立叶平面中双光束耦合的能量传递。 通过用参考和信号图像的强烈联合频谱泵浦弱平面波来实现硬切割状态中的压缩非线性。 该设备的操作与相位滤波器的操作相当或超过用于检测杂乱噪声中的物体的操作。 实验结果与平面波和波束传播模拟进行比较。
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公开(公告)号：US07068583B2
公开(公告)日：2006-06-27
申请号：US10373909
申请日：2003-02-26
申请人： Jehad Khoury
发明人： Jehad Khoury
IPC分类号： G11B7/00
CPC分类号： G02F2/002 , G02B6/29322 , G02B6/29395 , H04B10/69 , H04J14/02
摘要： A single high resolution holographic pickup, for reading/writing both a CD and DVD optical recording medium, has an electrical tuning control for applying a DC and AC signal to a tunable Bragg cell, which AC is phase locked with respect to the fundamental repetition frequency of the recorded data on the CD to produce accurate tracking. A special high resolution holographic lens is recorded within the Bragg cell that focuses the light signals read off of the optical storage mediums upon a pickup detector, and its focal length is varied to read a selected CD and or DVD from a group of CDs or DVDs in response to changes in the DC applied to the Bragg cell. The holographic lens within the Bragg cell is formed by an interference pattern produced by interfering light emitted from the tip of a one micron optical fiber and a plane broad light beam.
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