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公开(公告)号：US20120250032A1
公开(公告)日：2012-10-04
申请号：US13439328
申请日：2012-04-04
IPC分类号： G01B9/02
CPC分类号： G02B21/06 , G01B9/02047 , G01B2210/56 , G01N21/956 , G01N2021/95676 , G02B21/002 , G02B27/58
摘要： Systems, methods and devices are implemented for optical imaging. In one embodiment of the present disclosure, an optical imaging apparatus utilizes a laser-based coherent light source, and an optical device to pass grated light along an illumination direction from the laser-based coherent light source toward an object. Additionally, an illumination modulator is provided for changing angles at which the light, moving toward the object plane, reaches the object plane, and the light reaches the object plane at different angles. Further, the apparatus can include circuitry to process image-based data in response to and based on the light reaching the object plane at different angles for a user-viewable image of an object in proximity of the object plane.
摘要翻译： 为光学成像实现了系统，方法和设备。 在本公开的一个实施例中，光学成像装置利用基于激光的相干光源和光学装置将沿着照明方向的磨光从基于激光的相干光源朝向物体传送。 此外，设置照明调制器，用于改变朝着物平面移动的光到达物平面的角度，并且光以不同的角度到达物体平面。 此外，该设备可以包括响应于并且基于以不同角度到达物体平面的光来处理基于图像的数据的电路，用于物体在物平面附近的用户可观看图像。
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公开(公告)号：US06987907B2
公开(公告)日：2006-01-17
申请号：US10006933
申请日：2001-12-04
申请人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede , Joseph W. Goodman
发明人： Demetri Psaltis , Christophe Moser , Greg Steckman , Karsten Buse , Ingo Nee , Joerg Hukriede , Joseph W. Goodman
IPC分类号： G02B6/26
CPC分类号： G02B6/29308 , G02B6/29311 , G02B6/29314 , G02B6/29382 , G02B6/29395
摘要： The present invention is a method and apparatus for a rotating, tunable, holographic drop filter connected to a fiber optic source. The filter uses a quasi phase-conjugate optical system for a drop-channel fiber coupling and WDM channels which are introduced to the system. The light from these channels is collimated and passed through a volume phase holographic material so that only one WDM channel is diffracted and the rest pass through the holographic material unaffected. A quasi phase-conjugate diffracted beam is generated by the optical system to reflect the diffracted channel back towards the holographic material. The reflected light is Bragg matched to the holographic material so that it is re-diffracted along a path identical to the original incident light beam. A free-space circulator may be used to direct the diffracted beam to a fiber optic collimator, which is different from the fiber optic collimator of the incident light beam.
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公开(公告)号：US4674824A
公开(公告)日：1987-06-23
申请号：US745312
申请日：1985-06-14
IPC分类号： G01N21/88 , G01N21/956 , G02B27/46 , G02F1/35 , G03F1/00 , G03F1/08 , G03H1/00 , G03H1/16 , G03H1/22
CPC分类号： G03H1/16 , G01N21/95623 , G03H2001/026 , G03H2001/0268
摘要： An optical system for selectively enhancing and/or suppressing the spectral intensity of components in an object beam, is disclosed. In one exemplary application, the optical system includes means for performing a forward transform operation on an input beam, a non-linear optical medium such as, for example, Bi.sub.12 SiO.sub.20 or Bi.sub.12 GeO.sub.20 and means for performing an inverse transform operation. In operation, the forward transform is performed on an input beam that contains a complex function characteristic of an object or subject, the resulting transform of the object beam is applied to the non-linear optical medium to form a hologram, then the hologram is read-out and the inverse transform operation is performed to provide an output optical beam that contains, for example, selectively enhanced intensity components and/or selectively suppressed intensity components. In one specific application, the object beam is obtained by transmitting a laser beam through a photomask such as, for example, the type used for fabricating semiconductor integrated circuits, the non-linear properties of the photorefractive crystal provide filtering or inversion of the intensity of the periodic aspects of the mask in the hologram and phase conjugate read-out and inverse transformation provide an image in which the intensity of the non-periodic defects is enhanced. In a second application, image inversion is employed to provide real-time inversion of intensity in the output image.
摘要翻译： 公开了一种用于选择性地增强和/或抑制物体光束中的部件的光谱强度的光学系统。 在一个示例性应用中，光学系统包括用于对输入光束执行正向变换操作的装置，诸如例如Bi12SiO20或Bi12GeO20的非线性光学介质以及用于执行逆变换操作的装置。 在操作中，对包含对象或被摄体的复杂功能特性的输入光束执行正向变换，将所得到的对象光束的变换应用于非线性光学介质以形成全息图，然后读取全息图 并且执行逆变换操作以提供包含例如选择性地增强的强度分量和/或选择性地抑制强度分量的输出光束。 在一个具体应用中，目标光束是通过传输激光束通过例如用于制造半导体集成电路的类型的光掩模获得的，光折射晶体的非线性特性提供过滤或反演强度 在全息图和相位共轭读出和逆变换中的掩模的周期性方面提供了非周期性缺陷的强度增强的图像。 在第二个应用中，使用图像反转来提供输出图像中的强度的实时反演。
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4.发明授权Optical guided wave signal processor for matrix-vector multiplication and filtering 失效光导波信号处理器，用于矩阵矢量乘法和滤波
公开(公告)号：US4588255A
公开(公告)日：1986-05-13
申请号：US503871
申请日：1983-06-13
CPC分类号： G02B6/2861 , G06E3/001
摘要： An array (48, 49, 50, 51) of fiber optic couplers coupling an input (45) and an output (46) waveguide. The output waveguide (46) is routed among the couplers of the array such that either backward or forward coupling exists. With backward coupling, energy coupled into the output waveguide (46) in a coupler of the array is guided back to the preceding coupler for coupling back into the input waveguide (45).The backward coupling allows recirculations to occur between couplers to create poles and zeroes in the transfer function of the array which transfer function can be programmed or tailored somewhat to have specific characteristics. Further, the backward coupling allows the array to be used for matrix-vector multiplication.
摘要翻译： 耦合输入（45）和输出（46）波导的光纤耦合器的阵列（48,49,50,51）。 输出波导（46）在阵列的耦合器之间被路由，使得存在向后或向前耦合。 通过反向耦合，耦合到阵列的耦合器中的输出波导（46）的能量被引导回到先前的耦合器以耦合回到输入波导（45）。 反向耦合允许在耦合器之间发生再循环，以在阵列的传递函数中产生极点和零点，该传递函数可以被编程或稍微修改以具有特定的特性。 此外，反向耦合允许阵列用于矩阵矢量乘法。
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公开(公告)号：US5610734A
公开(公告)日：1997-03-11
申请号：US386257
申请日：1995-02-09
CPC分类号： G02B5/32
摘要： An optical system is disclosed which focuses a polychromatic source to an extended focal pencil. The implementation makes use of two holographic optical elements (HOEs) fabricated and aligned to form a deliberate longitudinal color dispersion, but to alleviate lateral chromatic effects. Consequently, the HOE doublet focuses different wavelengths of the source to different locations along the optical axis. The strong intensity of the focused wavelengths dominate at each location, so that the overall beam has a near-diffraction-limited 1/e.sup.2 spot size and suffers only relatively weak background illumination. An alternative optical system using bulk lenses and several possible applications for the device are also described.
摘要翻译： 公开了一种将多色源聚焦到扩展焦点笔的光学系统。 该实施方案利用制造和对准的两个全息光学元件（HOE）以形成有意的纵向色散，但是减轻横向色彩效应。 因此，HOE双峰将源的不同波长沿着光轴聚焦到不同的位置。 聚焦波长的强烈强度在每个位置处占主导地位，使得整个光束具有接近衍射的1 / e2斑点尺寸，并且仅具有较弱的背景照明。 还描述了使用体透镜的替代光学系统以及该器件的若干可能应用。
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6.发明授权Apparatus and method for routing optical signals through wavelength-coding in a self-routed wavelength addressable network 失效在自路由波长可寻址网络中通过波长编码路由光信号的装置和方法
公开(公告)号：US5541756A
公开(公告)日：1996-07-30
申请号：US341654
申请日：1994-11-17
CPC分类号： H04J14/02 , H04J14/0246 , H04J14/025 , H04Q11/0005 , H04J14/0226 , H04J14/0282 , H04Q2011/0015 , H04Q2011/0022 , H04Q2011/0026 , H04Q2011/0039 , H04Q2011/0041 , H04Q2011/0052 , H04Q2011/0077
摘要： A network and method for routing optical signals through wavelength-coding of routing tags belonging to the optical signals. The routing tag preferably consists of one or more header pulses S.sub.i which are chosen from among header wavelengths .lambda..sub.hi. Preferably, the header wavelengths .lambda..sub.hi are different from wavelengths used by the data. The optical signal also has reset tag containing preferably one reset pulse R preferably having a unique reset wavelength .lambda..sub.r. The optical data is contained between the routing tag and the reset tag. The network has a splitter for dividing the optical signal into two or more split optical signals, which are copies of the original optical signal. A wavelength differentiating element is positioned in the path of one of the split optical signals to differentiate and preferably spatially resolve the header wavelengths of the header pulses. An opto-electronic control system, consisting of opto-electronic sensors and an electronic control circuit, generates electronic control signals based on the wavelength-coded information in the header tag. These electronic control signals are used to route one or more of the split optical signals through an optical switch. The network can be made up of one simple switch or a large number of complex switches.
摘要翻译： 一种用于通过属于光信号的路由标签的波长编码来路由光信号的网络和方法。 路由标签优选地由从报头波长λhi中选择的一个或多个报头脉冲Si组成。 优选地，标题波长λhi不同于由数据使用的波长。 光信号还具有优选地具有优选地具有唯一复位波长λr的一个复位脉冲R的复位标签。 光学数据包含在路由标签和复位标签之间。 网络具有用于将光信号分成两个或更多个分离光信号的分离器，它们是原始光信号的副本。 波长差分元件位于分割光信号中的一个的路径中，以区分并优选地空间地解析标题脉冲的标题波长。 由光电传感器和电子控制电路组成的光电控制系统基于头标中的波长编码信息生成电子控制信号。 这些电子控制信号用于通过光学开关路由一个或多个分离光信号。 网络可以由一个简单的交换机或大量的复杂交换机组成。
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公开(公告)号：US08841591B2
公开(公告)日：2014-09-23
申请号：US13439328
申请日：2012-04-04
IPC分类号： G01B9/02 , G02B27/58 , G02B21/06 , G01N21/956 , G02B21/00
CPC分类号： G02B21/06 , G01B9/02047 , G01B2210/56 , G01N21/956 , G01N2021/95676 , G02B21/002 , G02B27/58
摘要： Systems, methods and devices are implemented for optical imaging. In one embodiment of the present disclosure, an optical imaging apparatus utilizes a laser-based coherent light source, and an optical device to pass grated light along an illumination direction from the laser-based coherent light source toward an object. Additionally, an illumination modulator is provided for changing angles at which the light, moving toward the object plane, reaches the object plane, and the light reaches the object plane at different angles. Further, the apparatus can include circuitry to process image-based data in response to and based on the light reaching the object plane at different angles for a user-viewable image of an object in proximity of the object plane.
摘要翻译： 为光学成像实现了系统，方法和设备。 在本公开的一个实施例中，光学成像装置利用基于激光的相干光源和光学装置将沿着照明方向的磨光从基于激光的相干光源朝向物体传送。 此外，设置照明调制器，用于改变朝着物平面移动的光到达物平面的角度，并且光以不同的角度到达物体平面。 此外，该设备可以包括响应于并且基于以不同角度到达物体平面的光来处理基于图像的数据的电路，用于物体在物平面附近的用户可观看图像。
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8.发明授权Single and multiple element holographic devices for high-efficiency beam correction 失效用于高效率光束校正的单元件和多元件全息设备
公开(公告)号：US5422746A
公开(公告)日：1995-06-06
申请号：US944160
申请日：1992-09-11
IPC分类号： G02B5/32
CPC分类号： G02B5/32
摘要： The holographic element of the present invention includes a holographic grating pattern that is impressed in the media of the element utilizing beams of electromagnetic energy of wavelength .lambda..sub.o. The holographic grating pattern is capable of manipulating a beam of electromagnetic energy having a wavelength .lambda..sub.c at which the media is not necessarily suitable for recording. The method for manufacturing the holographic element utilizes an object beam and a reference beam having aspherical wavefronts of wavelength .lambda..sub.o to create the grating pattern in the media. In the preferred embodiment, the aspherical object beam and reference beam are created utilizing parent holographic devices recorded with spherical beams. An alternative embodiment of the present invention is a doublet holographic device which incorporates two holographic elements that are formed in accordance with the present invention to manipulate a beam of electromagnetic energy of wavelength .lambda..sub.c in a desired manner. The invention is particularly useful in obtaining high-quality volume phase holograms for use outside of the blue-green spectral range. A particular application is manipulating beams of electromagnetic energy from infrared laser diodes.
摘要翻译： 本发明的全息元件包括利用波长为λo的电磁能束的冲击元件的介质中的全息光栅图案。 全息光栅图案能够操纵具有波长λc的电磁能束，其中介质不一定适合于记录。 制造全息元件的方法利用物体光束和具有波长λo的非球面波前的参考光束在介质中产生光栅图案。 在优选实施例中，使用以球面光束记录的母体全息装置来产生非球面物体光束和参考光束。 本发明的替代实施例是一种双重全息装置，其包括根据本发明形成的两个全息元件，以期望的方式操纵波长λc的电磁波束。 本发明特别可用于获得在蓝 - 绿光谱范围之外使用的高品质体积相位全息图。 一个特定的应用是操纵来自红外激光二极管的电磁波束。
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