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1. 发明授权

US08078663B2 Optical correlation apparatus and method 有权
标题翻译：光学相关装置及方法
公开(公告)号：US08078663B2
公开(公告)日：2011-12-13
申请号：US11664348
申请日：2005-10-18
申请人： Rebecca A Wilson , Meirion F Lewis , Andrew C Lewin
发明人： Rebecca A Wilson , Meirion F Lewis , Andrew C Lewin
IPC分类号： G06E3/00
CPC分类号： G06E3/00 , G06K9/745
摘要： This invention relates to a pattern recognition correlator and method for correlating input data with one or more reference data sets. The input data, which may be for instance digital amplitude modulated optical data, is used to modulate an optical signal to form a phase modulated optical signal. This temporal phase modulated optical signal is then converted into a parallel optical phase signal, preferably through use of an optical delay, and modulated by an optical phase modulator. When there is a correlation between the input data and the reference data the emerging wavefront is plane and can be strongly coupled to a detector. In the absence of correlation the emergent wavefront is not plane and so is not coupled as strongly to the detector. The detector output can therefore be used as an indication of correlation.
摘要翻译：本发明涉及一种用于将输入数据与一个或多个参考数据集相关联的模式识别相关器和方法。可以使用输入数据（例如数字调幅光学数据）来调制光信号以形成相位调制光信号。该时间相位调制光信号然后被优选地通过使用光学延迟并被光相位调制器调制而转换成并行光相位信号。当输入数据和参考数据之间存在相关性时，出现的波前是平面的并且可以强耦合到检测器。在没有相关性的情况下，出现的波前不是平面的，因此不像检测器那样强烈耦合。因此，检测器输出可以用作相关指示。

2. 发明授权

US06785320B1 Control of polarisation of vertical cavity surface emitting lasers 失效
标题翻译：垂直腔表面发射激光器的极化控制
公开(公告)号：US06785320B1
公开(公告)日：2004-08-31
申请号：US10019956
申请日：2002-02-12
申请人： Richard M Amos , Meirion F Lewis , Rebecca A Wilson
发明人： Richard M Amos , Meirion F Lewis , Rebecca A Wilson
IPC分类号： H01S308
CPC分类号： H01S5/18355 , H01S5/18386
摘要： A vertical cavity surface emitting laser (VCSEL) comprising a one dimensional grating structure configured to act as a waveguide, preferably located at an end surface of the VCSEL, for selectively reflecting more of a first polarisation of light back into the cavity of the VCSEL than a second orthogonal polarisation of light. Preferably the VCSEL comprises an upper Bragg mirror, a gain region, and a lower Bragg mirror, and the one dimensional grating structure is located on a top layer of the upper Bragg mirror and the top layer of the upper Bragg mirror has a thickness such that the reflected light of one polarisation constructively interferes with light of said one polarisation which is reflected by the upper Bragg mirror. The VCSEL will then lase at the polarisation which is more predominantly reflected by the grating structure.
摘要翻译：垂直腔表面发射激光器（VCSEL），包括被配置为充当波导的一维光栅结构，优选地位于VCSEL的端面处，用于选择性地将更多的第一偏振光反射回VCSEL的空腔中，光的第二个正交极化。优选地，VCSEL包括上布拉格反射镜，增益区域和下布拉格反射镜，并且一维光栅结构位于上布拉格镜的顶层上，并且上布拉格格镜的顶层具有如下厚度：一个极化的反射光构造地干扰由上部布拉格反射镜反射的所述一个偏振的光。然后，VCSEL将以更主要由光栅结构反射的偏振发光。

3. 发明授权

US08145011B2 Correlation apparatus 失效
标题翻译：相关装置
公开(公告)号：US08145011B2
公开(公告)日：2012-03-27
申请号：US12086213
申请日：2006-12-12
申请人： Andrew C Lewin , Rebecca A Wilson , Gregor J McDonald
发明人： Andrew C Lewin , Rebecca A Wilson , Gregor J McDonald
IPC分类号： G06K9/64 , G06K9/00 , G06K9/54 , G06K9/60
CPC分类号： G06K9/74 , H04J3/047
摘要： This invention relates to a pattern recognition correlator in which a serial input data signal is converted into a parallel data signal for correlation with one or more reference data signals. The invention relates to use of a demultiplexer in such a correlation apparatus to reduce the data update rate for the subsequent components. The invention also relates to the use of a series of latch circuits to provide serial to parallel conversion of the input data signal in the electrical domain.
摘要翻译：本发明涉及一种模式识别相关器，其中串行输入数据信号被转换为与一个或多个参考数据信号相关的并行数据信号。本发明涉及在这种相关装置中使用解复用器以减少后续组件的数据更新速率。本发明还涉及使用一系列锁存电路来提供电域中的输入数据信号的串行到并行转换。

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