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公开(公告)号：US06741364B2
公开(公告)日：2004-05-25
申请号：US10217945
申请日：2002-08-13
IPC分类号： G01B1124
CPC分类号： G01B11/00
摘要： An apparatus for determining relative positioning of first and second objects being relatively movable may include a laser source carried by the first object for generating a source laser beam toward the second object, and a target optical element carried by the second object for generating a first reflected beam and a second diverging reflected beam from the source laser beam. Furthermore, a detector may be carried by the first object for detecting the first reflected beam and the second diverging reflected beam. A controller may also be connected to the detector for determining a range between the detector and target optical element based upon a size of the second diverging reflected beam. The controller may also determine at least one other positional degree of freedom quantity (e.g., lateral/vertical displacement, pitch angle, yaw angle, and/or roll angle) based upon the first reflected beam and the second diverging reflected beam.
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2.发明授权公开(公告)号：US08675202B2
公开(公告)日：2014-03-18
申请号：US13102712
申请日：2011-05-06
CPC分类号： G01N21/1702 , G01B9/02064 , G01B17/02 , G01B2290/40
摘要： A sensing apparatus includes an excitation source configured to induce waves in a target, and an optical waveguide interferometer configured to sense the induced waves in the target. The optical waveguide interferometer includes a plurality of optical couplers and interconnecting optical fibers arranged to define a reference arm, a measurement arm, and a probe segment coupled to the reference arm and the measurement arm and having a probe segment end to be positioned adjacent the target. An optical path length adjustor is coupled to the reference arm. A controller cooperates with the path length adjustor and is configured to adjust an optical path length of the reference arm to maintain a constant relationship with respect to an optical path length of the measurement arm.
摘要翻译： 感测装置包括被配置为在目标中感应波的激励源和被配置为感测目标中的感应波的光波导干涉仪。 光波导干涉仪包括多个光耦合器和互连光纤，其布置成限定参考臂，测量臂和耦合到参考臂和测量臂的探测段，并且具有探针段末端以邻近靶 。 光路长度调节器耦合到参考臂。 控制器与路径长度调节器配合，并且被配置为调整参考臂的光路长度以保持与测量臂的光程长度恒定的关系。
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公开(公告)号：US20080273828A1
公开(公告)日：2008-11-06
申请号：US12177181
申请日：2008-07-22
IPC分类号： G02B6/00
CPC分类号： G02B6/29343 , G02B6/12007 , G02B6/29341
摘要： An optical microresonator is formed as a microcylinder and a resonant waveguide on the microcylinder and having a plurality of spaced resonant elements such as circumferential ridges for optically coupling light from an optical source waveguide onto the microcylinder. The resonant elements have a spacing, height and angle to impart a desire polarization and bring in the polarization states into degenerancy. A coating could also be formed over the resonant waveguide and operative with the resonant waveguide and of a refractive index to bring any polarization states into degenerancy.
摘要翻译： 光学微谐振器在微圆柱体上形成为微圆筒和谐振波导，并且具有多个间隔开的谐振元件，例如用于将光源波导的光光学耦合到微圆柱上的周向脊。 谐振元件具有间隔，高度和角度以赋予欲望偏振并且使极化状态变为退化。 还可以在谐振波导上形成涂层，并且与谐振波导和折射率一起工作以使任何极化状态变为退化。
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4.发明授权Optical microresonator with microcylinder and circumferential coating forming resonant waveguides 失效具有微圆柱体和周向涂层的光学微谐振器形成谐振波导公开(公告)号：US07346241B2
公开(公告)日：2008-03-18
申请号：US11114491
申请日：2005-04-26
IPC分类号： G02B6/26
CPC分类号： G02B6/29341 , G02B6/29343 , G02B6/29383 , G02B6/29395
摘要： An optical microresonator and method of forming same includes a microcylinder and a circumferential coating formed on the microcylinder. This coating has a higher index of refraction than the microcylinder and is of such thickness relative to the diameter of the microcylinder that a resonant waveguide is formed such that light optically couples from an optical source waveguide onto the microcylinder.
摘要翻译： 光学微谐振器及其形成方法包括微圆筒和形成在微圆柱体上的圆周涂层。 该涂层具有比微圆柱体更高的折射率，并且相对于形成谐振波导的微圆柱体的直径具有如此厚度，使得光从光源波导光学耦合到微圆柱体上。
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公开(公告)号：US6052215A
公开(公告)日：2000-04-18
申请号：US235697
申请日：1999-01-22
CPC分类号： G02F1/33
摘要： A solid state acoustic travelling wave lens comprises a thin core layer of acoustic and light transmissive material, such as crystalline quartz, compression-bonded between a pair of outer or cladding layers, such as fused silica, having an acoustic velocity that is only slightly higher than (e.g., less than five percent of) that of the core material. The acoustic mode field characteristic of the weakly guiding device contains no spatial variations caused by Fresnel diffraction in an unguided wave device. In a second embodiment, shear stress coupling between the core and cladding layers is inhibited by interposing very thin liquid boundary layers between the core layer and the cladding layers. Such thin liquid boundary layers, which are relatively more compressible than the core and cladding material, allow longitudinal waves to be transmitted across the core/cladding boundary (through the liquid), but prevent transmission of shear waves therebetween.
摘要翻译： 固体声波行波透镜包括声光透射材料的薄芯层，例如结晶石英，压缩在一对外层或覆层之间，例如熔融二氧化硅，其声速仅略高 （例如，不到5％）的核心材料。 弱引导装置的声模场特性不包含非导波装置中由菲涅耳衍射引起的空间变化。 在第二实施例中，通过在芯层和包覆层之间插入非常薄的液体边界层来抑制芯和包层之间的剪切应力耦合。 这种比芯和包层材料相对更可压缩的薄的液体边界层允许纵向波纹穿过芯/包层边界（通过液体）传输，但是防止它们之间的剪切波传播。
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6.发明申请INTERFEROMETRIC SENSING APPARATUS INCLUDING ADJUSTABLE COUPLING AND ASSOCIATED METHODS 有权包括可调节耦合和相关方法的干涉感测装置公开(公告)号：US20120281227A1
公开(公告)日：2012-11-08
申请号：US13102619
申请日：2011-05-06
IPC分类号： G01B9/02
CPC分类号： G01B9/02049 , A61B5/0084 , A61B5/1075 , A61B5/6886 , A61B2562/0233 , A61B2562/223 , G01B9/0205 , G01B9/02068 , G01B11/0666 , G01H9/004 , G01N29/043 , G01N29/2418
摘要： A sensing apparatus comprises an excitation source configured to induce waves in a target, and a fiber optic interferometer configured to sense the induced waves in the target. The fiber optic interferometer comprises a probe segment having a probe segment end, and an adjustable coupler configured to permit setting a gap between the probe segment end and the target. A controller is coupled to the adjustable coupler and configured to set the gap between the probe segment end and the target.
摘要翻译： 感测装置包括被配置为在目标中感应波的激励源和被配置为感测目标中的感应波的光纤干涉仪。 光纤干涉仪包括具有探针段末端的探针段和被配置为允许在探针段末端和靶之间设置间隙的可调耦合器。 控制器耦合到可调节耦合器并且被配置为设置探针段末端和靶之间的间隙。
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公开(公告)号：US07555179B2
公开(公告)日：2009-06-30
申请号：US12177181
申请日：2008-07-22
IPC分类号： G02B6/26
CPC分类号： G02B6/29343 , G02B6/12007 , G02B6/29341
摘要： An optical microresonator is formed as a microcylinder and a resonant waveguide on the microcylinder and having a plurality of spaced resonant elements such as circumferential ridges for optically coupling light from an optical source waveguide onto the microcylinder. The resonant elements have a spacing, height and angle to impart a desire polarization and bring in the polarization states into degenerancy. A coating could also be formed over the resonant waveguide and operative with the resonant waveguide and of a refractive index to bring any polarization states into degenerancy.
摘要翻译： 光学微谐振器在微圆柱体上形成为微圆筒和谐振波导，并且具有多个间隔开的谐振元件，例如用于将光源波导的光光学耦合到微圆柱上的周向脊。 谐振元件具有间隔，高度和角度以赋予欲望偏振并且使极化状态变为退化。 还可以在谐振波导上形成涂层，并且与谐振波导和折射率一起工作以使任何极化状态变为退化。
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公开(公告)号：US07190860B2
公开(公告)日：2007-03-13
申请号：US11465819
申请日：2006-08-21
IPC分类号： G02B6/26
CPC分类号： G02B6/29395 , G02B6/10 , G02B6/12002 , G02B6/12007 , G02B6/29341 , G02B6/29343 , G02B6/29359
摘要： An optical microresonator includes microcylinder and spiral resonant waveguide formed on the microcylinder that optically couples light from an optical source waveguide to the microcylinder and slows light propagating along the microcylinder. A coupling element, for example, a diffraction grating can be operative with the resonant waveguide structure and configured to meet a desired phase matching. A second microcylinder having a spiral resonant waveguide formed thereon can be positioned adjacent to the spiral resonant waveguide formed on the first microcylinder for coupling therewith. The spiral resonant waveguides on first and second microcylinders can be configured for slowing light propagating along the microcylinder.
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9.发明授权Stepped acoustic impedance-matching transformer for very narrow channel acoustic traveling wave lens waveguide 有权用于非常窄通道声波行波透镜波导的阶跃声阻抗匹配变压器公开(公告)号：US06487324B2
公开(公告)日：2002-11-26
申请号：US09896167
申请日：2001-06-29
IPC分类号： G02F1335
摘要： An acoustic impedance-matching transformer includes a tapered acoustic energy transmission (metal) block, having an acoustic impedance less than that of a piezo-electric transducer in a metric direction toward that of the acoustic propagation medium of the waveguide, and by an amount that allows tailoring of the relative spatial dimensions of mating surfaces of the transducer and the block, so as to provide efficient broadband coupling of acoustic energy. The surface area of the end face of the block engaging the transducer is a corresponding fraction of the area of the transducer. The tapered block focuses acoustic energy toward the input aperture of the waveguide channel. The taper is determined in accordance with difference between the acoustic impedance of the aluminum block and that of a second acoustic wave propagation element, such as a quarter-wave section of plexiglass, interposed between the waveguide channel and the tapered block.
摘要翻译： 声阻抗匹配变压器包括锥形声能传输（金属）块，其声学阻抗小于在波导的声传播介质的方向上的压电换能器的声阻抗， 允许调整换能器和块的配合表面的相对空间尺寸，以便提供声能的有效的宽带耦合。 接合换能器的块的端面的表面积是换能器面积的相应部分。 锥形块将声能聚焦到波导通道的输入孔径。 根据介于波导通道和锥形块之间的铝块的声阻抗与诸如有机玻璃的四分之一波长部分的第二声波传播元件的声阻抗之差来确定锥度。
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公开(公告)号：US5173790A
公开(公告)日：1992-12-22
申请号：US754267
申请日：1991-08-29
申请人： Robert M. Montgomery
发明人： Robert M. Montgomery
CPC分类号： G06E3/005 , H01Q3/2676
摘要： An adaptive filter having a correlation weighting structue having a single Bragg cell, acting as a tapped delay line and having an input and an output, the Bragg cell intensity modulating a write laser beam for computing correlation values, and modulating a read laser field strength for multiplying the correlation values by delayed signal values. A photorefractive element is arranged such that substantial portions of diffracted and undiffracted light components from the single Bragg cell overlap within the photorefractive element. A write laser is intensity modulated by an error signal to produce an optical write signal that is received at the photorefractive element input and which writes correlation coefficients in the photorefractive element. A read laser produces a light signal, a portion of which is diffracted by the single Bragg cell, the portion of the light signal that is not diffracted by the single Bragg cell being partially diffracted by the photorefractive element. A photodetector having an input receives the portion of the light signal that is diffracted by the single Bragg cell and the portion of the read laser light signal that is diffracted by the photorefractive crystal, the photodetector output producing a filtered signal. The read laser light is isolated from the write laser light such that only the read laser light reaches the photodetector.
摘要翻译： 具有相关加权结构的自适应滤波器，具有单个布拉格单元，充当抽头延迟线并具有输入和输出，布拉格单元强度调制用于计算相关值的写入激光束，并且调制读取激光场强 将相关值乘以延迟信号值。 光折射元件被布置成使得来自单个布拉格单元的衍射和未衍射的光分量的实质部分在光折变元件内重叠。 写激光器由误差信号进行强度调制，以产生在光折变元件输入处接收的光写入信号，并在光折变元件中写入相关系数。 读取激光产生光信号，其一部分由单个布拉格光栅衍射，光信号的不被单个布拉格光栅衍射的部分被光折变元件部分衍射。 具有输入的光电检测器接收由单个布拉格单元衍射的光信号的部分和由光折射晶体衍射的读出的激光信号的部分，光电检测器输出产生滤波信号。 读取的激光与写入激光隔离，使得仅读取的激光到达光电检测器。
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