公开(公告)号：US20130301033A1

公开(公告)日：2013-11-14

申请号：US13889720

申请日：2013-05-08

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Erkki Alarousu ,  Ghassan Jabbour

IPC: G01J3/45

CPC classification number: G01J3/45 ,  G01B9/02044 ,  G01B9/02051 ,  G01B9/02091

Abstract: Apparatuses and systems for submicron resolution spectral-domain optical coherence tomography (OCT) are disclosed. The system may use white light sources having wavelengths within 400-1000 nanometers, and achieve resolution below 1 μm. The apparatus is aggregated into a unitary piece, and a user can connect the apparatus to a user provided controller and/or light source. The light source may be a supercontinuum source.

Abstract translation: 公开了用于亚微米分辨率光谱域光学相干断层扫描（OCT）的装置和系统。 该系统可以使用具有在400-1000纳米之间的波长的白光源，并且实现低于1um的分辨率。 该设备被聚合成一体，并且用户可以将设备连接到由用户提供的控制器和/或光源。 光源可以是超连续光源。

公开(公告)号：US20130286402A1

公开(公告)日：2013-10-31

申请号：US13906416

申请日：2013-05-31

Applicant: Université Laval

Inventor： Philippe Giaccari ,  Pierre Tremblay ,  Philippe Saucier ,  Jérôme Genest ,  Jean-Daniel Deschênes

IPC: G01J3/45

CPC classification number: G01J3/45 ,  G01J3/453 ,  G01J3/457 ,  G01J9/04

Abstract: There is provided a method for referencing and correcting the beating spectrum generated by the interference of the components of a frequency comb source. The proposed method allows monitoring of variations of a mapping between the source and the beating replica. This can then be used to compensate small variations of the source in Fourier transform spectroscopy or in any other interferometry application in order to overcome the accuracy and measurement time limitations of the prior art. Constraints on source stability are consequently reduced.

Abstract translation: 提供了一种用于参考和校正由频率梳源的分量的干扰产生的拍频的方法。 所提出的方法允许监视源和跳动副本之间的映射的变化。 这可以用于补偿傅立叶变换光谱学或任何其他干涉测量应用中源的小变化，以克服现有技术的精度和测量时间限制。 因此，源稳定性的限制因此减少。

公开(公告)号：US20130215429A1

公开(公告)日：2013-08-22

申请号：US13771642

申请日：2013-02-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong Won SONG ,  Jung Ah LIM

IPC: G01J3/45 ,  G02B6/10

CPC classification number: G01J3/45 ,  G01J3/0218 ,  G01J3/26 ,  G01N21/7703 ,  G01N2021/772 ,  G01N2021/7723 ,  G01N2021/7779 ,  G02B6/10

Abstract: The present invention relates to an apparatus for gas sensing including: a header part to generate interference wave to light from light source by the principle of fiber fabry-perot interferometer; and an optical spectrum analyzer to decide existence of specific gas based on change of spectrum periodicity of the interference wave, wherein the header part includes a sensing material that expands or shrinks by the above specific gas and the above interference wave changes its spectrum periodicity depending on expansion and shrinkage of the above sensing material.

Abstract translation: 本发明涉及一种用于气体感测的装置，包括：头部部分，通过光纤法布里罗干涉仪的原理从光源产生干涉波; 以及基于干涉波的频谱周期性的变化来决定特定气体的存在的光谱分析仪，其中，头部包括由上述特定气体扩张或收缩的感测材料，并且上述干涉波根据 上述传感材料的膨胀和收缩。

公开(公告)号：US20130144561A1

公开(公告)日：2013-06-06

申请号：US13809569

申请日：2011-08-19

Applicant: Charles Charbel Harb ,  Thomas Gary Spence ,  Toby Kristian Boyson

Inventor： Charles Charbel Harb ,  Thomas Gary Spence ,  Toby Kristian Boyson

IPC: G01N21/59 ,  G06F17/00

CPC classification number: G01N21/59 ,  G01J3/42 ,  G01J3/4338 ,  G01J3/45 ,  G01N21/31 ,  G01N21/39 ,  G01N2021/3595 ,  G06F17/00

Abstract: Systems and methods for analysing a time-domain signal are described. The method comprising: in a mixer (150), mixing the time-decay signal (115) with a local oscillator signal (122) generated by a local oscillator (120), resulting in a mixed signal from which a Fourier transformed time-decay signal is generated comprising a fundamental transformed time decay signal at the fundamental frequency of the local oscillator signal (122) and a plurality of transformed time-decay signals at a plurality of frequencies; and determining the magnitude of each of the transformed time-decay signals at the fundamental frequency and at a frequency other than the fundamental frequency.

Abstract translation: 描述用于分析时域信号的系统和方法。 该方法包括：在混频器（150）中，将时间衰减信号（115）与由本地振荡器（120）产生的本地振荡器信号（122）混合，得到混合信号，从该混频信号中经傅里叶变换的时间衰减 产生包括在本地振荡器信号（122）的基频处的基本变换的时间衰减信号和多个频率处的多个变换的时间衰减信号的信号; 并且确定基频和基频以外的变换的时间 - 衰减信号的幅度。

公开(公告)号：US20130135614A1

公开(公告)日：2013-05-30

申请号：US13574484

申请日：2011-01-24

Applicant: Adam Wax ,  Robert N. Graf ,  Francisco E. Robles

Inventor： Adam Wax ,  Robert N. Graf ,  Francisco E. Robles

IPC: G01B9/02

CPC classification number: G01J3/453 ,  G01B9/02044 ,  G01B9/02084 ,  G01B9/02087 ,  G01B9/02091 ,  G01J3/45 ,  G01J2003/4538 ,  G01N21/49

Abstract: Current apparatuses and methods for analysis of spectroscopic optical coherence tomography (SOCT) signals suffer from an inherent tradeoff between time (depth) and frequency (wavelength) resolution. In one non-limiting embodiment, multiple or dual window (DW) apparatuses and methods for reconstructing time-frequency distributions (TFDs) that applies two windows that independently determine the optical and temporal resolution is provided. For example, optical resolution may relate to scattering information about a sample, and temporal resolution may be related to absorption or depth related information. The effectiveness of the apparatuses and methods is demonstrated in simulations and in processing of measured OCT signals that contain fields which vary in time and frequency. The DW technique may yield TFDs that maintain high spectral and temporal resolution and are free from the artifacts and limitations commonly observed with other processing methods.

Abstract translation: 分光光学相干断层扫描（SOCT）信号的分析的现有装置和方法遭受时间（深度）和频率（波长）分辨率之间固有的折中。 在一个非限制性实施例中，提供了用于重建施加独立地确定光学和时间分辨率的两个窗口的时间频率分布（TFD）的多重或双窗口（DW）装置和方法。 例如，光学分辨率可以涉及关于样本的散射信息，并且时间分辨率可以与吸收或深度相关信息相关。 在模拟和处理包含在时间和频率上变化的场的测量的OCT信号中证明了装置和方法的有效性。 DW技术可以产生维持高光谱和时间分辨率的TFD，并且不存在通常用其它处理方法观察到的伪像和限制。

公开(公告)号：US20130135026A1

公开(公告)日：2013-05-30

申请号：US13682983

申请日：2012-11-21

Applicant: FTRX LLC

Inventor： Zvi Bleier ,  Alexander Jacobson ,  Drouét Warren Vidrine ,  Jack Gordon Kisslinger

IPC: H03L5/00

CPC classification number: G01J3/45 ,  G01B21/047 ,  G01J3/4535 ,  G02B5/122 ,  G02B26/00 ,  G02B26/12 ,  G05B6/02 ,  G05B15/02 ,  H02K33/16 ,  H03L5/00

Abstract: A quasi-translator for economically producing pure, smooth translational motion with broad arcuate or error-free motion regardless of orientation, which is useful in numerous interferometer applications including spectroscopy, a Fourier modulator and a Fourier spectrometer are provided. The quasi-translator utilizes a support, an arm including a driving magnet on a first end and a driven element on a second end, an axis for rotation of the arm, a bearing system that controls the rotation of the arm about the axis, a drive coil and a drive amplifier to drive the arm in the arcuate motion. The quasi-translator may be employed in a Fourier modulator to change the optical path difference of the interferometer/quasi-translator at a substantially constant rate of change. The quasi-translator and/or Fourier modulator may be used in a Fourier spectrometer to create an optical spectrum from a light beam and/or electrical signal created from the light beam.

公开(公告)号：US08406580B2

公开(公告)日：2013-03-26

申请号：US13192577

申请日：2011-07-28

Applicant: Kazumasa Takada ,  Katsunari Okamoto

Inventor： Kazumasa Takada ,  Katsunari Okamoto

IPC: G02B6/12 ,  G01J3/45

CPC classification number: G01J3/4531 ,  G01J3/45 ,  G01J3/4532

Abstract: A transform spectrometer measurement apparatus and method for a planar waveguide circuit (PLC). The spectrometer typically includes an input optical signal waveguide carrying an input optical signal; a plurality of couplers, each connected to the input optical signal waveguide, and each including a coupler output for carrying a coupled optical signal related to the input optical signal; and an array of interleaved, waveguide Mach-Zehnder interferometers (MZI), each having at least one input MZI waveguide, each MZI input waveguide receiving a coupled optical signal from a respective coupler output. A phase shifting circuit is applied to at least one arm of the MZIs to induce an active phase shift on the arm to thereby measure phase error in the MZIs. Light output from the MZIs is measured under intrinsic phase error conditions and after an active phase shift by the phase shifting circuit.

Abstract translation: 一种用于平面波导电路（PLC）的变换光谱仪测量装置和方法。 光谱仪通常包括承载输入光信号的输入光信号波导; 多个耦合器，各自连接到输入光信号波导，并且每个耦合器包括耦合器输出，用于承载与输入光信号相关的耦合光信号; 以及每个具有至少一个输入MZI波导的交错的波导马赫 - 策德尔干涉仪阵列（MZI），每个MZI输入波导从相应的耦合器输出接收耦合的光信号。 移相电路施加到MZI的至少一个臂，以引起臂上的有源相移，从而测量MZI中的相位误差。 来自MZI的光输出在固有相位误差条件下测量，并在相移电路进行有源相移之后测量。

公开(公告)号：US20120098924A1

公开(公告)日：2012-04-26

申请号：US12324709

申请日：2008-11-26

Applicant: Darryl Busch ,  Kwong Wing Au

Inventor： Darryl Busch ,  Kwong Wing Au

IPC: H04N7/00

CPC classification number: G01J3/45 ,  G06T7/11 ,  G06T7/168 ,  G06T7/194

Abstract: The invention is a detection system that provides for background removal from a field of view (FOV) of spectra. A panoramic field of regard may be partitioned into a large number of FOV's. An FOV may include spectra including that of a target substance. Such detection may require removing the spectra other than that of the target. This may amount to removal of the background with an estimated background developed from spectra of one or more FOV's which may be similar to the background of the FOV with the target. An estimation of the background may be a sum of a number of FOV spectra where each spectrum is assigned a weight, the total amount of the weights being one.

Abstract translation: 本发明是提供从光谱视场（FOV）的背景去除的检测系统。 全景视野可分为大量FOV。 FOV可以包括包括目标物质的光谱。 这种检测可能需要除去目标以外的光谱。 这可能相当于从一个或多个FOV的光谱开发的估计背景的去除，其可以类似于具有目标的FOV的背景。 背景的估计可以是FOV光谱的数量的总和，其中每个光谱被分配一个权重，权重的总量是1。

公开(公告)号：US20110262042A1

公开(公告)日：2011-10-27

申请号：US13128791

申请日：2009-11-09

Applicant: Klaus Schertler

Inventor： Klaus Schertler

IPC: G06K9/48

CPC classification number: G01J3/45 ,  G01S17/95 ,  G06T7/62 ,  G06T7/66 ,  Y02A90/19

Abstract: A system and method processes intensity images having a ring structure to measure position, shape deviation and/or radius of the ring structure, and to evaluate interferograms and/or localize objects. The system and method can define N sectors of the intensity image respectively having sector tips lying at a common sector origin within the ring structure, with N being a natural number where N>1, detect a distance of an intensity extreme from the respective sector tip of each sector of at least one group of the sectors to obtain a distance vector that includes the distances from all the sectors from at least the group of the sectors, perform a Fourier transformation of the distance vector, and determine a center, a radius and/or a deviation of the ring structure from a circular shape, by using the first Fourier vector obtained by the Fourier transformation.

Abstract translation: 系统和方法处理具有环结构以测量环结构的位置，形状偏差和/或半径的强度图像，并且评估干涉图和/或定位对象。 系统和方法可以定义强度图像的N个扇区，其分别具有位于环结构内的公共扇区原点的扇区尖端，其中N是N> 1的自然数，从相应扇区尖端检测强度极限的距离 以获得包括来自至少该扇区组的所有扇区的距离的距离矢量，执行距离矢量的傅里叶变换，并且确定中心，半径和 /或环结构与圆形的偏差，通过使用通过傅里叶变换获得的第一傅立叶向量。

公开(公告)号：US20110188046A1

公开(公告)日：2011-08-04

申请号：US12699332

申请日：2010-02-03

Applicant: Scott Thomas Sanders ,  Thilo Kraetschmer

Inventor： Scott Thomas Sanders ,  Thilo Kraetschmer

IPC: G01J3/42 ,  G01J3/45

CPC classification number: G01J3/42 ,  G01J3/45

Abstract: An absorption spectrometer provides improved rejection of background radiation signal by employing a frequency-swept laser signal without frequency dithering and performing an effective differentiation of output light from a test cell to eliminate these constant or slowly varying background radiation levels.

Abstract translation: 吸收光谱仪通过采用没有频率抖动的频率扫描激光信号并且执行来自测试电池的输出光的有效区分以消除这些恒定或缓慢变化的背景辐射水平来提供背景辐射信号的改进的抑制。