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    Systems and methods for imaging using a random laser
    1.
    发明授权
    Systems and methods for imaging using a random laser 有权

    公开(公告)号：US10432871B2

    公开(公告)日：2019-10-01

    申请号：US14110937

    申请日：2012-04-16

    申请人： Hui Cao ,  Brandon Redding ,  Michael Choma

    发明人： Hui Cao ,  Brandon Redding ,  Michael Choma

    IPC分类号： G02B27/48 ,  H04N5/235 ,  H01S3/30 ,  H04N9/31 ,  H01S5/10 ,  H01S3/10 ,  H01S3/08 ,  H01S3/213 ,  H01S5/04

    摘要： Systems and methods are provided for imaging using complex lasers. In general, a complex laser may be used as an electromagnetic source for an imaging application. The use of a lower spatial coherence configured complex laser in imaging applications may advantageously mitigate coherent artifacts in imaging such as cross-talk and speckle and improve overall image quality. Imaging applications where a complex laser may be useful include both incoherent imaging applications, such as digital light projectors and traditional microscopy, and coherent imaging applications, such as optical coherence tomography (OCT) and holography. The systems and methods provided also enable controlling the degree of spatial coherence of a complex laser.

    Systems and Methods for Imaging Using a Random Laser
    2.
    发明申请
    Systems and Methods for Imaging Using a Random Laser 审中-公开
    使用随机激光成像的系统和方法

    公开(公告)号：US20140111671A1

    公开(公告)日：2014-04-24

    申请号：US14110937

    申请日：2012-04-16

    申请人： Hui Cao ,  Brandon Redding ,  Michael Choma

    发明人： Hui Cao ,  Brandon Redding ,  Michael Choma

    IPC分类号： H04N5/235 ,  H01S3/10

    摘要： Systems and methods are provided for imaging using complex lasers. In general, a complex laser may be used as an electromagnetic source for an imaging application. The use of a lower spatial coherence configured complex laser in imaging applications may advantageously mitigate coherent artifacts in imaging such as cross-talk and speckle and improve overall image quality. Imaging applications where a complex laser may be useful include both incoherent imaging applications, such as digital light projectors and traditional microscopy, and coherent imaging applications, such as optical coherence tomography (OCT) and holography. The systems and methods provided also enable controlling the degree of spatial coherence of a complex laser.

    摘要翻译： 提供了使用复合激光成像的系统和方法。 通常，复合激光器可以用作成像应用的电磁源。 在成像应用中使用配置复杂激光的较低的空间相干性可以有利地减轻成像中的相干伪影，例如串扰和散斑，并提高整体图像质量。 复合激光器可能有用的成像应用包括非相干成像应用，如数字光投影仪和传统显微镜，以及相干成像应用，如光学相干断层扫描（OCT）和全息术。 所提供的系统和方法还能够控制复杂激光器的空间相干性程度。

    Methods and systems for reducing complex conjugat ambiguity in interferometric data
    3.
    发明申请
    Methods and systems for reducing complex conjugat ambiguity in interferometric data 有权
    用于降低干涉测量数据中复杂的共轭模糊度的方法和系统

    公开(公告)号：US20060232783A1

    公开(公告)日：2006-10-19

    申请号：US11336652

    申请日：2006-01-20

    申请人： Michael Choma ,  Joseph Izatt ,  Anjul Davis

    发明人： Michael Choma ,  Joseph Izatt ,  Anjul Davis

    IPC分类号： G01B9/02 ,  G01B11/02

    CPC分类号： G01B9/02004 ,  G01B9/02002 ,  G01B9/02069 ,  G01B9/02078 ,  G01B9/02091

    摘要： A complex conjugate ambiguity can be resolved in an Optical Coherence Tomography (OCT) interferogram. A reference light signal is propagated along a reference path. A sample light signal is impinged on a sample reflector. The reference light signal is frequency shifted with respect to the sample light signal to thereby separate a positive and a negative displacement of a complex conjugate component of the OCT interferogram.

    摘要翻译： 在光学相干断层扫描（OCT）干涉图中可以解决复共轭模糊度。 参考光信号沿着参考路径传播。 样品光信号撞击样品反射器。 参考光信号相对于采样光信号被偏移，从而分离OCT干涉图的复共轭分量的正位移和负位移。

    System and method for low coherence broadband quadrature interferometry
    10.
    发明授权
    System and method for low coherence broadband quadrature interferometry 失效
    低相干宽带正交干涉测量系统和方法

    公开(公告)号：US07019838B2

    公开(公告)日：2006-03-28

    申请号：US10855652

    申请日：2004-05-28

    申请人： Joseph A. Izatt ,  Michael Choma ,  Changhuei Yang

    发明人： Joseph A. Izatt ,  Michael Choma ,  Changhuei Yang

    IPC分类号： G01B9/02

    CPC分类号： G01B9/02004 ,  G01B9/02002 ,  G01B9/02044 ,  G01B9/02081 ,  G01B9/02091 ,  G01B2290/45 ,  G01B2290/70 ,  G01N21/4795

    摘要： A quadrature broadband interferometry system and method obtains a complete complex interferometric signal instantaneously in both homodyne and heterodyne systems in a simple, compact, and inexpensive setup. This is accomplished by separating interferometric components from non-interferometric components in each of at least two detector signals of an interferometer having a number of N×N couplers, scaling the interferometric components, and generating real and imaginary parts of a complex interferometric signal from the scaled interferometric components. The detector signals preferably derive from a broadband light source coupled to the interferometer, and the number of N×N couplers may be one or more, with N≧3.

    摘要翻译： 正交宽带干涉测量系统和方法在简单，紧凑且便宜的设置中在零差和外差系统中瞬时获得完整的复杂干涉信号。 这是通过将具有多个N×N耦合器的干涉仪的至少两个检测器信号中的每一个中的干涉测量分量分离成干涉测量分量来实现的，缩放干涉测量分量，以及从经缩放的干涉测量中产生复干涉信号的实部和虚部 组件。 检测器信号优选地源自耦合到干涉仪的宽带光源，并且N×N个耦合器的数量可以是一个或多个，其中N≥3。