Fringe Reduction in Laser Spectroscopy
    292.
    发明申请
    Fringe Reduction in Laser Spectroscopy 审中-公开
    激光光谱的边缘减少

    公开(公告)号:US20150292944A1

    公开(公告)日:2015-10-15

    申请号:US14682363

    申请日:2015-04-09

    Inventor: Yue Tian Ting Wang

    CPC classification number: G01J3/0297 G01J3/0205 G01J3/26 G01J3/28 G01J3/45

    Abstract: An optical phase scrambler is coupled to a laser source to randomly modulate the optical phase. Since the optical phase is continuously changing in a random fashion, at the output of an etalon interferometer formed in the optical path, the two or more components in the interference always have certain time delay between each other, resulting in a random phase different between each other. Therefore, after interference, the fringe amplitude varies randomly as well. Then at the receiver side, the fringe noise is greatly reduced after averaging over time.

    Abstract translation: 光学相位扰频器耦合到激光源以随机调制光学相位。 由于光学相位以随机方式连续变化,在形成于光路中的标准具干涉仪的输出处,干涉中的两个或更多个成分之间总是具有一定的时间延迟,导致每个 其他。 因此,干扰后,条纹幅度也随机变化。 然后在接收机侧,随着时间的推移,边缘噪声大大降低。

    METHOD AND SYSTEM FOR SPECTRAL IMAGING
    293.
    发明申请
    METHOD AND SYSTEM FOR SPECTRAL IMAGING 有权
    用于光谱成像的方法和系统

    公开(公告)号:US20150285686A1

    公开(公告)日:2015-10-08

    申请号:US14438641

    申请日:2013-10-24

    Inventor: Nir Katzir

    Abstract: A method of calibrating a spectral imaging system is disclosed. The spectral imaging system comprises an interferometer having a beam splitter and at least a first reflector and a second reflector. The method comprises: obtaining data pertaining to an interference pattern model, operating the spectral imaging system to provide an interference pattern of a received light beam, and varying a relative orientation between at least two of: the beam splitter, the first reflector and the second reflector, until the interference pattern of the input light beam substantially matches the interference pattern model.

    Abstract translation: 公开了一种校准光谱成像系统的方法。 光谱成像系统包括具有分束器和至少第一反射器和第二反射器的干涉仪。 该方法包括:获得与干涉图案模型相关的数据,操作光谱成像系统以提供接收光束的干涉图案,以及改变以下中的至少两个之间的相对取向:分束器,第一反射器和第二反射器 反射器,直到输入光束的干涉图案基本上与干涉图案模型相匹配。

    Recording a spectrally resolved image by reading out several partial arrays in a plurality of interferometer scans
    298.
    发明授权
    Recording a spectrally resolved image by reading out several partial arrays in a plurality of interferometer scans 有权
    通过在多个干涉仪扫描中读出几个部分阵列来记录光谱分辨的图像

    公开(公告)号:US09086319B2

    公开(公告)日:2015-07-21

    申请号:US13672728

    申请日:2012-11-09

    Abstract: A method for the acquisition (AU) of a spectrally resolved, two-dimensional image by means of Fourier transform (FT) spectroscopy or Fourier transform infrared (FTIR) spectroscopy, is characterized in that, during multiple passes (D1-D4) of an optical path difference (OG) between two partial rays (14a, 14b) over an identical range (IB), different subsets of detector elements (22) of an array detector (5) are read out and the signals of the read-out detector elements (22) of the multiple passes (D1-D4) are Fourier transformed and combined to form the spectrally resolved image. A method is thereby provided for the acquisition of two-dimensional, spectrally resolved images, in which the influence of vibrations on the measurement is reduced, and which is less affected by the movement of objects to the resolved spectrally.

    Abstract translation: 通过傅里叶变换(FT)光谱或傅立叶变换红外(FTIR)光谱法获取(AU)光谱分辨的二维图像的方法的特征在于,在多次通过(D1-D4) 在相同范围(IB)上的两个部分光线(14a,14b)之间的光程差(OG),阵列检测器(5)的不同检测元件子集(22)被读出,并且读出检测器 多路径(D1-D4)的元件(22)被傅里叶变换并组合以形成光谱分辨图像。 因此,提供了一种用于获取二维光谱分辨图像的方法,其中振动对测量的影响减小,并且其受到光谱分解物体的移动的影响较小。

    SYSTEM AND METHOD FOR DYNAMICALLY SWEEPING A TUNABLE LASER
    299.
    发明申请
    SYSTEM AND METHOD FOR DYNAMICALLY SWEEPING A TUNABLE LASER 有权
    用于动态扫描可激活的系统和方法

    公开(公告)号:US20150185073A1

    公开(公告)日:2015-07-02

    申请号:US14419818

    申请日:2013-08-07

    Abstract: The invention provides a dynamically swept tunable laser system and method for measuring sensor characteristics obtained from an array of optical sensors comprising means for dividing the total wavelength sweep of the laser into different regions in any particular order where each region contains single or multiple contiguous sweep segments and where each sweep segment is referenced by a start and a stop reference and can have different lengths compared to the other sweep segments. The sensor characteristics are determined from each region swept by the tunable laser. The invention provides for the tunable laser to be adapted to operate in a quasi-continuous mode to select segments in any order. The relative sweep rates of regions can be changed such that some regions can be swept more times than other regions.

    Abstract translation: 本发明提供了一种用于测量从光学传感器阵列获得的传感器特性的动态扫描可调谐激光系统和方法,包括用于以任何特定顺序将激光器的总波长扫描分成不同区域的装置,其中每个区域包含单个或多个连续扫描段 并且其中每个扫描段由起始和停止参考引用,并且与其它扫描段相比可以具有不同的长度。 传感器特性由可调激光扫描的每个区域确定。 本发明提供了可调谐激光器,其适于以准连续模式操作,以任何顺序选择片段。 可以改变区域的相对扫描速率,使得一些区域可以比其他区域扫过更多次。

    INTERFEROMETER HAVING MULTIPLE SCAN CARRIAGES
    300.
    发明申请
    INTERFEROMETER HAVING MULTIPLE SCAN CARRIAGES 审中-公开
    具有多个扫描载体的干涉仪

    公开(公告)号:US20150083916A1

    公开(公告)日:2015-03-26

    申请号:US14561425

    申请日:2014-12-05

    Abstract: An interferometer includes a first assembly having a base, a beam splitter assembly to split light into first and second portions, and a fixed mirror for reflecting the first portion of light; and a second assembly movable with respect to the first assembly, and having first and second scan carriages, and a movable mirror connected to the second scan carriage for reflecting the second portion of light. The beam splitter assembly combines the reflected first and second portions of light into a recombined radiation beam. Inner bearing flexures enable movement of the first scan carriage relative to the base, and outer bearing flexures enable movement of the second scan carriage relative to the first scan carriage, such that a plane containing the movable mirror is maintained parallel to multiple planes containing the movable mirror at respective distances between the second and first assemblies during scan movement of the movable mirror.

    Abstract translation: 干涉仪包括具有底座的第一组件,将光分成第一和第二部分的分束器组件以及用于反射第一部分光的固定镜; 以及第二组件,其可相对于所述第一组件移动,并且具有第一和第二扫描支架,以及连接到所述第二扫描托架的用于反射所述第二部分光的可移动镜。 分束器组件将反射的第一和第二部分光合并成复合辐射束。 内部轴承挠曲能够使第一扫描滑架相对于基座移动,而外轴承挠曲使第二扫描滑架相对于第一扫描滑架能够移动,使得包含可移动反射镜的平面保持平行于包含可移动的多个平面的多个平面 在可移动镜的扫描运动期间在第二组件和第一组件之间的相应距离处的镜子。

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