公开(公告)号：US20150276473A1

公开(公告)日：2015-10-01

申请号：US14666501

申请日：2015-03-24

Applicant: FANUC CORPORATION

Inventor： Takashi Izumi

IPC: G01J1/42 ,  G01J11/00

CPC classification number: G01J1/4257 ,  G01J11/00 ,  H01S3/08045 ,  H01S3/097 ,  H01S3/101 ,  H01S3/13 ,  H01S3/139

Abstract: A beam profiler which can determine whether or not a laser beam can be suitably output at a lower cost. The beam profiler is provided with a partial reflecting mirror, light receiving parts, and laser intensity sensors which are individually attached to the light receiving parts. The light receiving parts include a first light receiving part which receives a first region which includes an optical axis of the laser beam in a laser irradiation region of the laser beam and a second light receiving part which is insulated heat-wise from the first light receiving part and which receives a second region of a laser irradiation region which is different from the first region.

Abstract translation: 能够确定能够以较低的成本适当地输出激光束的光束轮廓仪。 光束轮廓仪设置有分别附接到光接收部分的部分反射镜，光接收部分和激光强度传感器。 光接收部分包括：第一光接收部分，其接收在激光束的激光照射区域中包括激光束的光轴的第一区域;以及第二光接收部分，其与第一光接收 并且其接收与第一区域不同的激光照射区域的第二区域。

公开(公告)号：US20150249505A1

公开(公告)日：2015-09-03

申请号：US14427570

申请日：2013-09-12

Applicant: ALCATEL LUCENT

Inventor： Jean-Guy Provost ,  Alexandre Shen

IPC: H04B10/508 ,  H04B10/548 ,  H04B10/2575 ,  H04B10/532

CPC classification number: H04B10/508 ,  G01J11/00 ,  H04B10/2575 ,  H04B10/532 ,  H04B10/548 ,  H04B10/614 ,  H04B10/615

Abstract: A system for visualizing an optical signal OS through linear optical sampling, comprising at least one first subsystem relating to the processing of a pulse signal SP and at least one second subsystem related to the processing of an optical signal OS. The signals are broken down into two orthogonal polarization components, called vertical and horizontal. The pulse signal SP is broken down into vertical Vsp and horizontal Hsp components, and the magnetic TM and electric TE transverse propagation modes of the optical signal OS respectively give the vertical Vtm and Vte components and horizontal Htm and Hte components. The vertical and horizontal components are time-shifted. The vertical components and horizontal components of the pulse signal SP and optical signal OS are parallel. The successive, synchronized detection of vertical components and horizontal components makes it possible to sample the signal OS, which is visualized by electronic processing.

Abstract translation: 一种用于通过线性光学采样来可视化光信号OS的系统，包括与脉冲信号SP的处理有关的至少一个第一子系统和与光信号OS的处理相关的至少一个第二子系统。 信号被分解成两个正交偏振分量，称为垂直和水平。 脉冲信号SP分解为垂直Vsp和水平Hsp分量，光信号OS的磁TM和TE TE横向传播模式分别给出垂直Vtm和Vte分量以及水平Htm和Hte分量。 垂直和水平分量都是时移的。 脉冲信号SP和光信号OS的垂直分量和水平分量是平行的。 垂直分量和水平分量的连续同步检测使得可以对通过电子处理可视化的信号OS进行采样。

公开(公告)号：US20150109620A1

公开(公告)日：2015-04-23

申请号：US14396978

申请日：2013-04-23

Applicant: INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES

Inventor： Takao Fuji ,  Yutaka Nomura

IPC: G01J11/00 ,  G01J9/02

CPC classification number: G01J11/00 ,  G01J3/2823 ,  G01J3/45 ,  G01J9/00 ,  G01J9/02 ,  G01J9/0246

Abstract: Provided are a method and an apparatus for measuring the spectral intensity and phase of a light pulse having an arbitrary time duration. The apparatus includes: a nonlinear mixing means for generating a signal light pulse expressed by the following Formula (★ denotes an operator representing general nonlinear mixing, and α denotes a coefficient which is proportional to a nonlinear susceptibility in the nonlinear mixing) by nonlinearly mixing a reference light pulse having an electric field Er(t−τ) delayed by an optical delay means and a measurement target light pulse having an electric field E0(t); and Er(t−τ)+αEr(t−τ)★E0(t) an imaging spectrum device for spectrally splitting the signal light pulse and outputting a Fourier transform signal expressed by the following Formula (F denotes a symbol indicating Fourier transform, * denotes a complex conjugate, and R denotes a symbol indicating a real part), |F[Er(t−τ)]|2+|αF[Er(t−τ)★E0(t)]|2+2R{αF[Er(t−τ)]*·F[Er(t−τ)★E0(t)]}.

Abstract translation: 提供了一种用于测量具有任意持续时间的光脉冲的光谱强度和相位的方法和装置。 该装置包括：非线性混合装置，用于产生由以下公式表示的信号光脉冲（★表示通用非线性混合的运算符，并且α表示与非线性混合中的非线性磁化率成比例的系数），通过非线性混合 具有由光延迟装置延迟的电场Er（t-τ）的参考光脉冲和具有电场E0（t）的测量目标光脉冲; 以及Er（t-τ）+αEr（t-τ）★E0（t）用于频谱分割信号光脉冲并输出由下式表示的傅里叶变换信号的成像光谱装置（F表示表示傅立叶变换的符号， | F [Er（t-τ）] | 2+ |αF[Er（t-τ）★E0（t）] | 2 + 2R { αF[Er（t-τ）] *·F [Er（t-τ）★E0（t）]}。

公开(公告)号：US20150106047A1

公开(公告)日：2015-04-16

申请号：US14318967

申请日：2014-06-30

Applicant: U.S.A. as represented by the Administrator of the National Aeronautics and Space Administration

Inventor： CONSTANTINE LUKASHIN ,  BRUCE A. WIELICKI

IPC: G01J1/10 ,  G01J1/42 ,  G01J11/00

CPC classification number: G01J1/10 ,  B64G1/1021 ,  B64G2001/1028 ,  G01J1/0429 ,  G01J1/08 ,  G01J1/4257 ,  G01J3/0224 ,  G01J3/28 ,  G01J11/00 ,  G01J2001/4238 ,  G01J2003/2866

Abstract: The present invention comprises an approach for calibrating the sensitivity to polarization, optics degradation, spectral and stray light response functions of instruments on orbit. The concept is based on using an accurate ground-based laser system, Ground-to-Space Laser Calibration (GSLC), transmitting laser light to instrument on orbit during nighttime substantially clear-sky conditions. To minimize atmospheric contribution to the calibration uncertainty the calibration cycles should be performed in short time intervals, and all required measurements are designed to be relative. The calibration cycles involve ground operations with laser beam polarization and wavelength changes.

Abstract translation: 本发明包括用于校准轨道上的仪器的偏振灵敏度，光学降级，光谱和杂散光响应函数的方法。 这个概念是基于使用精确的地面激光系统，地面到空间激光校准（GSLC），在夜间基本上天空条件下，将激光传输到轨道上的仪器。 为了尽量减少对校准不确定度的大气贡献，校准周期应在短时间间隔内执行，所有需要的测量都设计为相对的。 校准周期涉及具有激光束偏振和波长变化的地面操作。

公开(公告)号：US20150097118A1

公开(公告)日：2015-04-09

申请号：US14382333

申请日：2013-03-01

Applicant: BEIHANG UNIVERSITY

Inventor： Zheng Zheng ,  Xin Zhao ,  Lei Liu ,  Jiansheng Liu

IPC: G01J3/10 ,  G01J3/447 ,  G01J3/42

CPC classification number: G01J11/00 ,  G01J1/10 ,  G01J3/0224 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/108 ,  G01J3/42 ,  G01J3/433 ,  G01J3/447 ,  G02F1/353 ,  G02F1/365 ,  G02F1/37 ,  G02F2203/13 ,  H01S3/0092 ,  H01S3/06791 ,  H01S3/0809 ,  H01S3/1106 ,  H01S3/1112 ,  H01S3/2391

Abstract: A method and a system for measuring an optical asynchronous sample signal. The system for measuring an optical asynchronous sampling signal comprises a pulsed optical source capable of emitting two optical pulse sequences with different repetition frequencies, a signal optical path, a reference optical path, and a detection device. Since the optical asynchronous sampling signal can be measured by merely using one pulsed optical source, the complexity and cost of the system are reduced. A multi-frequency optical comb system using the pulsed optical source and a method for implementing the multi-frequency optical comb are further disclosed.

公开(公告)号：US20150043054A1

公开(公告)日：2015-02-12

申请号：US14386396

申请日：2013-03-19

Applicant: ISIS INNOVATION LTD

Inventor： Martin Booth ,  Patrick Salter ,  Richard Simmonds

IPC: H01S3/00 ,  G02F1/01 ,  G02B26/06 ,  G02B27/09

CPC classification number: H01S3/0057 ,  G01J11/00 ,  G02B13/22 ,  G02B26/007 ,  G02B26/02 ,  G02B26/06 ,  G02B26/0816 ,  G02B26/0825 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/0068 ,  G02B27/09 ,  G02F1/01 ,  H01S3/10053

Abstract: In a method and system for controlling the shape of an optical pulse, the two-dimensional shape of the phase front is controlled using a first control device and the shape of the phase front and the two-dimensional shape of the pulse front is controlled using a second control device. The combined effect on the phase front results in a desired overall phase front control and the second device provides the desired overall pulse front control. This enables the phase front control and pulse front control to be decoupled. Correcting for pulse lengthening of femtosecond laser pulses during focusing by a dispersive lens. The spatially varying phase (72) introduced by the lens can be corrected for by a spatial light modulator like (SLM) a liquid crystal modulator. The spatially varying arrival time at the focus (70) can be compensated for by a deformable mirror (DM). A controller with a feedback loop and pulse characterization in the focus can compensate for the errors introduced by any dispersive focusing means.

Abstract translation: 在用于控制光脉冲形状的方法和系统中，使用第一控制装置控制相位前端的二维形状，并且使用相位前沿的形状和脉冲前沿的二维形状来控制 第二控制装置。 对相位前沿的组合效应导致期望的整体相位前沿控制，并且第二装置提供期望的总体脉冲前沿控制。 这使得相位前沿控制和脉冲前沿控制能够解耦。 通过色散透镜校正飞秒激光脉冲的脉冲延长。 由透镜引入的空间变化相（72）可以通过液晶调制器（SLM）等空间光调制器进行校正。 在焦点（70）处的空间变化的到达时间可以由可变形反射镜（DM）补偿。 在焦点中具有反馈回路和脉冲表征的控制器可以补偿由任何色散聚焦装置引入的误差。

公开(公告)号：US20150029575A1

公开(公告)日：2015-01-29

申请号：US14384550

申请日：2013-03-14

Applicant: Sumitomo Osaka Cement Co., Ltd.

Inventor： Tokutaka Hara ,  Youichi Hosokawa

IPC: H01S3/11 ,  H01S3/13 ,  G02F1/225 ,  H01S3/00

CPC classification number: H01S3/11 ,  G01J3/0205 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2823 ,  G01J3/45 ,  G01J3/453 ,  G01J9/02 ,  G01J11/00 ,  G01J2009/0288 ,  G01N21/3581 ,  G02F1/01 ,  G02F1/21 ,  G02F1/2252 ,  G02F1/2255 ,  G02F1/2257 ,  G02F2001/212 ,  G02F2201/16 ,  G02F2203/13 ,  G02F2203/50 ,  G02F2203/56 ,  H01S3/0057 ,  H01S3/0085 ,  H01S3/06754 ,  H01S3/1301 ,  H01S5/12 ,  H01S2301/08

Abstract: Provided is an optical pulse-generator and an optical pulse-generating method which are capable of generating an optical pulse train with an arbitrary pattern. An optical pulse-generator 1 includes a first optical modulator 21 configured to modulate input light using a first modulation signal SIG1 to generate optical pulses, a second optical modulator 41 configured to perform a modulation operation using a second modulation signal SIG2 synchronizing with the first modulation signal SIG1 and having a signal pattern that is set to output only specific part of the optical pulses, and a dispersion compensator 30 configured to compensate a chirp of the optical pulse output from the first optical modulator 21.

Abstract translation: 提供了能够产生任意图案的光脉冲串的光脉冲发生器和光脉冲产生方法。 光脉冲发生器1包括第一光调制器21，其被配置为使用第一调制信号SIG1调制输入光以产生光脉冲;第二光调制器41，被配置为使用与第一调制同步的第二调制信号SIG2执行调制操作 信号SIG1，具有被设定为仅输出光脉冲的特定部分的信号图案;以及色散补偿器30，被配置为补偿从第一光调制器21输出的光脉冲的啁啾。

公开(公告)号：US20140362376A1

公开(公告)日：2014-12-11

申请号：US14466861

申请日：2014-08-22

Applicant: Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences

Inventor： Jun LIU ,  Fangjia LI ,  Ruxin LI

IPC: G01J3/45 ,  G01J3/18

CPC classification number: G01J3/45 ,  G01J3/18 ,  G01J11/00 ,  G01J2003/1861 ,  G01J2003/451 ,  G02B19/0095 ,  G02B27/0988

Abstract: Apparatuses and method for real-time measuring ultrashort pulse shape and pulse width. Transient-grating effect on a transparent optical medium is used to generate a reference beam. A black plate with four equal-sized holes divides the incoming laser beam into four beams, one of which is attenuated and introduced an appropriate time delay relative to the other three. The four laser beams pass through a concave mirror and are focused onto a nonlinear transparent optical medium. The three beams without attenuation are used to generate a transient-grating light in the transparent medium. The transient-grating light is collinear and overlapped with the fourth attenuated beam. According to the third-order nonlinear effect, the transient-grating light has a broader spectral bandwidth and more smooth spectrum phase with respect to the incident laser. By measuring the spectral interference, the spectrum and spectral phase may be retrieved by spectral interferometry.

Abstract translation: 用于实时测量超短脉冲形状和脉冲宽度的装置和方法。 使用透明光学介质上的瞬态光栅效应来产生参考光束。 具有四个相等尺寸孔的黑色板将入射激光束分成四个光束，其中一个光束被衰减并且相对于其它三个光束引入适当的时间延迟。 四个激光束通过凹面镜并聚焦到非线性透明光学介质上。 不使用衰减的三个光束用于在透明介质中产生瞬时光栅光。 瞬态光栅光线与第四衰减光束共线并重叠。 根据三阶非线性效应，瞬态光栅光具有相对于入射激光器的更宽的光谱带宽和更平滑的光谱相位。 通过测量光谱干涉，光谱和光谱相位可以通过光谱干涉测量来检索。

公开(公告)号：US20140292183A1

公开(公告)日：2014-10-02

申请号：US14354663

申请日：2012-08-07

Applicant: Katsuyuki Kinoshita

Inventor： Katsuyuki Kinoshita

IPC: H01J31/42 ,  H01J29/62

CPC classification number: H01J31/42 ,  G01J11/00 ,  G01J2011/005 ,  H01J29/62 ,  H01J31/502

Abstract: A steak tube 1 has a container 2 with an entrance plate 2a and an output plate 2b; a photocathode 7 disposed in the container 2 and configured to emit electrons according to light to be measured, the light having been incident through the entrance plate 2a; a mesh electrode 3, a first focusing electrode 4, and an aperture electrode 5 forming an axially symmetric electron lens for focusing the electrons emitted from the photocathode 7, toward the output plate 2b; a sweep electrode 6 disposed in the container 2 and configured to sweep the electrons focused by the axially symmetric electron lens, in a sweep direction along the output plate 2b; and a second focusing electrode 9 disposed between the entrance plate 2a and the output plated 2b and forming a one-dimensional electron lens for focusing the electrons in the sweep direction.

Abstract translation: 牛排管1具有带有入口板2a和输出板2b的容器2; 设置在容器2中并被配置为根据待测光发射电子的光电阴极7，该光已经通过入口板2a入射; 形成用于将从光电阴极7发射的电子聚焦到轴向对称电子透镜的网状电极3，第一聚焦电极4和孔径电极5朝向输出板2b; 设置在容器2中并构造成沿着输出板2b沿扫掠方向扫掠由轴对称电子透镜聚焦的电子的扫掠电极6; 以及设置在入口板2a和输出电镀层2b之间的第二聚焦电极9，并且形成用于在扫掠方向上聚焦电子的一维电子透镜。

公开(公告)号：US20140184197A1

公开(公告)日：2014-07-03

申请号：US13727959

申请日：2012-12-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sergei Ivanovich Dolinsky

IPC: G01R15/24

CPC classification number: G01R31/2837 ,  G01J1/08 ,  G01J1/4228 ,  G01J11/00 ,  G01T1/2018 ,  G01T1/208

Abstract: Exemplary embodiments are directed to characterizing a solid state photomultiplier (SSPM). The SSPM can be exposed to a light pulse that triggers a plurality of microcells of the SSPM and an output signal of the SSPM generated in response to the light pulse can be processed. The output signal of the SSPM can be proportional to a gain of the SSPM and a quantity of microcells in the SSPM and a value of an electrical parameter of the SSPM can be determined based on a relationship between the output signal of the SSPM and an over voltage applied to the SSPM.

Abstract translation: 示例性实施例涉及表征固态光电倍增管（SSPM）。 SSPM可以暴露于触发SSPM的多个微单元的光脉冲，并且可以处理响应于光脉冲而产生的SSPM的输出信号。 SSPM的输出信号可以与SSPM的增益成比例，并且SSPM中的微小区的数量和SSPM的电参数的值可以基于SSPM的输出信号与上一个之间的关系来确定 施加到SSPM的电压。