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    High power, spectrally combined laser systems and related methods
    3.
    发明授权
    High power, spectrally combined laser systems and related methods 失效
    大功率光谱组合激光系统及相关方法

    公开(公告)号：US06697192B1

    公开(公告)日：2004-02-24

    申请号：US09708697

    申请日：2000-11-08

    申请人： Tso Yee Fan ,  Anish Goyal ,  Antonio Sanchez-Rubio

    发明人： Tso Yee Fan ,  Anish Goyal ,  Antonio Sanchez-Rubio

    IPC分类号： H01S300

    CPC分类号： H01S3/2383 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/2308 ,  H01S5/4025 ,  H01S5/50

    摘要： An external-resonator laser system having multiple laser elements is configured to permit each laser to undergo individual amplification notwithstanding optical beam combination. In this way, overall output power may be scaled in a desired fashion, depending on the selected characteristics of the optical amplifier elements. To achieve additional power, each of the amplifiers may implemented as a phased array. Viewed more generally, a phased-array configuration affords beam combining in two stages, with each contributing input source itself composed of multiple sources whose outputs have been combined. If each phased-array source emits at a different wavelength, this design offers a multi-wavelength output whose power level may be scaled in accordance with the number and character of the devices forming each phased array.

    摘要翻译： 具有多个激光元件的外部谐振器激光系统被配置成允许每个激光器经受单独的放大，尽管光束组合。 以这种方式，总体输出功率可以以期望的方式缩放，这取决于所选择的光放大器元件的特性。 为了实现额外的功率，每个放大器可以实现为相控阵列。 更一般地说，相控阵配置提供两个阶段的波束组合，每个贡献输入源本身由已经组合其输出的多个源组成。 如果每个相控阵源都以不同的波长发射，则该设计提供多波长输出，其功率电平可以根据形成每个相控阵列的器件的数量和特性进行缩放。

    EXTERNAL-CAVITY ONE-DIMENSIONAL MULTI-WAVELENGTH BEAM COMBINING OF TWO-DIMENSIONAL LASER ELEMENTS
    4.
    发明申请
    EXTERNAL-CAVITY ONE-DIMENSIONAL MULTI-WAVELENGTH BEAM COMBINING OF TWO-DIMENSIONAL LASER ELEMENTS 有权
    二维激光元件的外部一维多波长光束组合

    公开(公告)号：US20120002272A1

    公开(公告)日：2012-01-05

    申请号：US13231407

    申请日：2011-09-13

    申请人： Bien Chann ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    发明人： Bien Chann ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    IPC分类号： H01S3/23 ,  G02B27/44 ,  G02B27/10 ,  G02B27/12

    CPC分类号： H01S5/4062 ,  H01S5/4012 ,  H01S5/405 ,  H01S5/4087

    摘要： An external-cavity one-dimensional multi-wavelength beam combiner that performs wavelength beam combining along a stacking dimension of a laser stack formed of a plurality of laser arrays, each laser array configured to generate optical radiation having a unique wavelength, and each of the plurality of laser arrays including one or more laser emitters arranged along an array dimension of the laser stack. The multi-wavelength beam combiner includes an optical imaging element configured to image each of the laser emitters along a slow axis of the laser emitters, an optical focusing element arranged to intercept the optical radiation from each of the plurality of laser arrays and combine the optical radiation along a stacking dimension of the laser stack to form a multi-wavelength optical beam, and a diffraction element positioned at a region of overlap of the optical radiation to receive and transmit the multi-wavelength optical beam.

    摘要翻译： 一种外腔一维多波长光束组合器，其沿着由多个激光阵列形成的激光器堆叠的堆叠尺寸进行波长束组合，每个激光器阵列被配置为产生具有独特波长的光辐射，并且每个 多个激光器阵列包括沿激光器堆叠的阵列尺寸布置的一个或多个激光发射器。 多波长光束组合器包括光学成像元件，其配置成沿着激光发射器的慢轴对每个激光发射器进行成像;光学聚焦元件，被设置成截取来自多个激光阵列中的每一个的光辐射，并将光学 沿着激光堆的堆叠尺寸的辐射以形成多波长光束，以及位于光辐射的重叠区域处的衍射元件，以接收和发射多波长光束。

    Method and apparatus for measuring a position of a particle in a flow
    5.
    发明授权
    Method and apparatus for measuring a position of a particle in a flow 有权
    用于测量流中颗粒位置的方法和装置

    公开(公告)号：US07821636B2

    公开(公告)日：2010-10-26

    申请号：US11804593

    申请日：2007-05-18

    申请人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Ronald H. Hoffeld ,  Jonathan Z. Lin ,  Nicholas M. F. Judson ,  George S. Haldeman ,  Vincenzo Daneu

    发明人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Ronald H. Hoffeld ,  Jonathan Z. Lin ,  Nicholas M. F. Judson ,  George S. Haldeman ,  Vincenzo Daneu

    IPC分类号： G01N21/00

    CPC分类号： G01N21/53 ,  G01B11/002 ,  G01N15/1459 ,  G01N2015/145

    摘要： Aerosol and hydrosol particle detection systems without knowledge of a location and velocity of a particle passing through a volume of space, are less efficient than if knowledge of the particle location is known. An embodiment of a particle position detection system capable of determining an exact location of a particle in a fluid stream is discussed. The detection system may employ a patterned illuminating beam, such that once a particle passes through the patterned illuminating beam, a light scattering is produced. The light scattering defines a temporal profile that contains measurement information indicative of an exact particle location. However, knowledge of the exact particle location has several advantages. These advantages include correction of systematic particle measurement errors due to variability of the particle position within the sample volume, targeting of particles based on position, capture of particles based on position, reduced system energy consumption and reduced system complexity.

    摘要翻译： 没有了解通过一定空间的颗粒的位置和速度的气溶胶和水溶胶颗粒检测系统比知道颗粒位置的知识效率低。 讨论了能够确定流体流中颗粒的确切位置的粒子位置检测系统的实施例。 检测系统可以使用图案化的照明光束，使得一旦粒子通过图案化的照明光束，就产生光散射。 光散射定义了包含指示精确粒子位置的测量信息的时间分布。 然而，确切的粒子位置的知识有几个优点。 这些优点包括校正由于样品体积内的颗粒位置的变异性引起的系统的颗粒测量误差，基于位置的颗粒靶向，基于位置的颗粒捕获，降低的系统能量消耗和降低的系统复杂性。

    External cavity laser source using spectral beam combining in two dimensions
    6.
    发明授权
    External cavity laser source using spectral beam combining in two dimensions 有权
    外腔激光源采用光束组合二维

    公开(公告)号：US06327292B1

    公开(公告)日：2001-12-04

    申请号：US09337081

    申请日：1999-06-21

    申请人： Antonio Sanchez-Rubio ,  Tso Yee Fan

    发明人： Antonio Sanchez-Rubio ,  Tso Yee Fan

    IPC分类号： H01S308

    CPC分类号： H01S5/4062 ,  H01S3/067 ,  H01S3/2383 ,  H01S5/4087

    摘要： A free space external cavity multi-wavelength laser that includes a free space external cavity and a two-dimensional laser array is described. The two-dimensional laser array includes a plurality of optical gain elements where each optical gain element generates optical radiation having a unique wavelength and a unique free space optical path. The laser also includes a two-dimensional dispersive optical system that spatially and angularly overlaps each of the free space optical paths in two dimensions. The laser also includes a partially reflecting element that is positioned to intercept each of the free space optical paths. The partially reflecting element, a reflector on each gain element, and the two-dimensional dispersive optical system together form a free space laser cavity that defines the unique wavelengths. The partially reflecting element transmits an overlapping beam comprising radiation having the unique wavelengths.

    摘要翻译： 描述了包括自由空间外腔和二维激光阵列的自由空间外腔多波长激光器。 二维激光阵列包括多个光学增益元件，其中每个光学增益元件产生具有独特波长和独特的自由空间光路的光辐射。 激光器还包括二维色散光学系统，其在二维空间上和角度上重叠每个自由空间光路。 激光器还包括被定位成拦截每个自由空间光路的部分反射元件。 部分反射元件，每个增益元件上的反射器和二维色散光学系统一起形成限定独特波长的自由空间激光腔。 部分反射元件透射包括具有独特波长的辐射的重叠光束。

    Method and apparatus for detecting and discriminating particles in a fluid
    8.
    发明授权
    Method and apparatus for detecting and discriminating particles in a fluid 有权
    用于检测和识别流体中的颗粒的方法和装置

    公开(公告)号：US07920261B2

    公开(公告)日：2011-04-05

    申请号：US12029300

    申请日：2008-02-11

    申请人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

    发明人： Thomas H. Jeys ,  Antonio Sanchez-Rubio ,  Richard J. Molnar ,  Robert K. Reich ,  Jinendra K. Ranka ,  David L. Spears ,  Richard M. Osgood, III

    IPC分类号： G01N21/00

    CPC分类号： G01N15/1434 ,  G01N15/1425 ,  G01N15/1459 ,  G01N2015/025 ,  G01N2015/1075 ,  G01N2015/145

    摘要： A particle detection system that images and detects particles in a fluid flow stream through use of detector array(s) is described. The detection system may include light source arrays that may selectively illuminate a particle in a fluid stream. The detection system may also include a detector array employing smart binning to read the measured signals. The smart binning of the detector array may be achieved through knowledge of an exact particle location provided by a position sensitive detector. The detector array(s) may be low cost based on intelligence built into the system. This particle detection system may be particularly useful for detection and discrimination of different particle types since the read-out of the particle signals can be accomplished with low noise and can be flexible enough to optimize the read out measurements for each particle. The particle detection system may be used, for example, in early warning contamination detection systems and manufacturing processes.

    摘要翻译： 描述了通过使用检测器阵列对流体流中的颗粒进行成像和检测的颗粒检测系统。 检测系统可以包括可以选择性地照射流体流中的颗粒的光源阵列。 检测系统还可以包括采用智能合并来读取测量信号的检测器阵列。 可以通过了解由位置敏感检测器提供的精确粒子位置来实现检测器阵列的智能合并。 基于内置于系统中的智能，检测器阵列可以是低成本的。 该粒子检测系统可能特别适用于不同粒子类型的检测和鉴别，因为可以以低噪声实现粒子信号的读出，并且可以足够灵活以优化每个粒子的读出测量。 粒子检测系统可以用于例如早期预警污染检测系统和制造过程。

    Continuous wave or ultrafast lasers
    9.
    发明授权
    Continuous wave or ultrafast lasers 有权

    公开(公告)号：US09620928B2

    公开(公告)日：2017-04-11

    申请号：US12837530

    申请日：2010-07-16

    申请人： Bien Chann ,  Daniel J. Ripin ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    发明人： Bien Chann ,  Daniel J. Ripin ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    IPC分类号： H01S3/13 ,  H01S3/23

    CPC分类号： H01S3/1307 ,  H01S3/2308 ,  H01S3/2333 ,  H01S3/2383 ,  H01S3/2391

    摘要： A laser system comprises: a seed oscillator, having a seed output; dispersive optics, operative to receive the seed output and divide the seed output into spectrally separate seed components; an array of individually addressable, phase adjustable laser amplifiers corresponding to the spectrally separate components, each laser amplifier receiving as its seed one of the spectrally separate seed components and producing one of the spectrally separate amplified components; and phase actuators controlling the individually addressable, phase adjustable laser amplifiers. A method of operating a laser system comprises: generating a seed signal; dividing the seed signal into spectrally separate component signals; amplifying the spectrally separate component signals; recombining the spectrally separate component signals into an amplified output; and controlling phases of the amplified spectrally separate component signals. Both single-pass and double-pass amplifier array versions are disclosed.

    Methods, systems, and apparatus for coherent beam combining
    10.
    发明授权
    Methods, systems, and apparatus for coherent beam combining 有权
    用于相干光束组合的方法，系统和装置

    公开(公告)号：US09134538B1

    公开(公告)日：2015-09-15

    申请号：US13760186

    申请日：2013-02-06

    申请人： Steven J. Augst ,  Juan Camilo Montoya ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    发明人： Steven J. Augst ,  Juan Camilo Montoya ,  Tso Yee Fan ,  Antonio Sanchez-Rubio

    IPC分类号： H01S3/082 ,  H01S3/10 ,  H01S3/13 ,  H01S5/00 ,  G02B27/10 ,  H01S5/10 ,  H01S3/08 ,  H01S5/14

    CPC分类号： G02B27/106 ,  G02B27/1093 ,  H01S3/08004 ,  H01S3/08009 ,  H01S3/0805 ,  H01S3/0826 ,  H01S3/11 ,  H01S3/1307 ,  H01S3/139 ,  H01S5/0287 ,  H01S5/0687 ,  H01S5/1007 ,  H01S5/1021 ,  H01S5/141 ,  H01S5/148 ,  H01S5/4031 ,  H01S5/4062 ,  H01S5/4068

    摘要： Coherent beam combining of laser gain elements achieves high output power in a diffraction limited beam. An active beam combining system coherently combines optical beams emitted by semiconductor laser gain elements in an external resonant cavity configuration. A beam combiner in the resonant cavity combines the outputs of the laser gain elements into a single coherent output beam whose power is monitored by a photodetector. A processor uses the photodetector's output to adjust the phases of the respective optical beams emitted by the laser gain elements so as to increase or maximize the coherent output beam's power. The processor may vary the optical beams' phases according to a stochastic parallel gradient descent (SPGD) algorithm for active phase control. Experimental results show a beam combining efficiency of 81% with an upper limit of 90% or higher and without the scaling limits imposed on passive-phasing systems.

    摘要翻译： 激光增益元件的相干光束组合在衍射受限光束中达到高输出功率。 有源波束组合系统将由半导体激光增益元件发射的光束相干地组合在外部谐振腔配置中。 谐振腔中的光束组合器将激光增益元件的输出组合成单个相干输出光束，其功率由光电检测器监控。 处理器使用光电检测器的输出来调整由激光增益元件发射的相应光束的相位，以便增加或最大化相干输出光束的功率。 处理器可以根据用于主动相位控制的随机并行梯度下降（SPGD）算法来改变光束的相位。 实验结果表明，光束组合效率为81％，上限为90％以上，没有对无源定相系统施加标定限制。