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    Quality review method for optical components using a fast system performance characterization
    1.
    发明授权
    Quality review method for optical components using a fast system performance characterization 失效
    使用快速系统性能表征的光学元件的质量评估方法

    公开(公告)号：US06781698B2

    公开(公告)日：2004-08-24

    申请号：US10237325

    申请日：2002-09-09

    申请人： Xudong Fan ,  James F. Brennan, III ,  Michael R. Matthews ,  Pranay G. Sinha ,  Jerome C. Porque

    发明人： Xudong Fan ,  James F. Brennan, III ,  Michael R. Matthews ,  Pranay G. Sinha ,  Jerome C. Porque

    IPC分类号： G01B902

    CPC分类号： G01M11/333 ,  G01M11/335

    摘要： A method for screening the quality of an optical component including the step of simulating the performance of the optical component. The step of simulating includes the step of measuring the optical phase &phgr; of the optical component, wherein the step of measuring comprises indirectly measuring the optical phase &phgr; of the optical component using a scanning laser having a scanning step size &Dgr;&ohgr; and a modulation frequency &ohgr;m such that &Dgr;&ohgr;/&ohgr;m≦2. The light throughput R of the optical component is then measured. A transfer function H as a function of optical frequency &ohgr; is constructed where H(&ohgr;)=R(&ohgr;)exp[j&phgr;(&ohgr;)], and the performance is simulated using the measured value of the optical phase and the light throughput into the transfer function.

    摘要翻译： 一种用于筛选光学部件的质量的方法，包括模拟光学部件的性能的步骤。 模拟步骤包括测量光学部件的光学相位phi的步骤，其中测量步骤包括使用具有扫描步长尺寸Deltaomega和调制频率ωgam的扫描激光器间接测量光学部件的光学相位phi Deltaomega / omegam <= 2。 然后测量光学部件的光通过量R. 构建其中H（ω）= R（ω）exp [jphi（ω）]的作为光频率ω的函数的传递函数H，并且使用光相位的测量值和光通量 传递函数。

    Self saturating semiconductor lasers
    4.
    发明授权
    Self saturating semiconductor lasers 失效
    自饱和半导体激光器

    公开(公告)号：US4350960A

    公开(公告)日：1982-09-21

    申请号：US168107

    申请日：1980-07-14

    申请人： Michael R. Matthews ,  David H. Newman ,  David R. Smith ,  Alan G. Steventon

    发明人： Michael R. Matthews ,  David H. Newman ,  David R. Smith ,  Alan G. Steventon

    IPC分类号： H01S5/00 ,  H01S5/10 ,  H01S5/14 ,  H01S5/20 ,  H01S3/19

    CPC分类号： H01S5/20 ,  H01S5/10 ,  H01S5/1032 ,  H01S5/14 ,  H01S5/2059

    摘要： A double heterostructure semiconductor laser having the configuration of its optical cavity arranged to impose a constraint on the lasing filament as the spatial distribution of the lasing filament changes from that occuring at the start of the lasing regime, so that the optical flux emitted by the laser has self-saturating properties. This protects the laser from catastrophic facet erosion and enables a simpler control circuit to be used to drive this laser when it is used as a light source for an optical communications system.

    摘要翻译： 具有其光学腔的结构的双异质结构半导体激光器，其布置成当激光灯丝的空间分布从在激光开始时发生的空间分布变化时对激光灯丝施加约束，使得激光发射的光通量 具有自饱和性。 这可以保护激光器免受灾难性的小面侵蚀，并且当将其用作光通信系统的光源时，可以使用更简单的控制电路来驱动该激光器。

    Tunable talbot interferometers for fiber bragg grating writing
    7.
    发明授权
    Tunable talbot interferometers for fiber bragg grating writing 失效
    可调谐的talbot干涉仪用于光纤布拉格光栅写入

    公开(公告)号：US06915044B2

    公开(公告)日：2005-07-05

    申请号：US10619776

    申请日：2003-07-15

    申请人： Michael R. Matthews

    发明人： Michael R. Matthews

    IPC分类号： G01C19/72 ,  G02B6/02 ,  G02B6/34

    CPC分类号： G02B6/02152 ,  G02B6/02133 ,  G02B6/02138

    摘要： A tunable interferometer for creating gratings of variable periodicity in an optical waveguide is disclosed. The interferometer includes a beam splitter for producing first and second write beams from an input beam. First and second reflectors receive the first and second write beams, respectively, from the beam splitter and direct the first and second write beams to intersect at a fixed location. The angle of intersection of the first and second write beams is a function of impingement locations of the first and second write beams on the first and second reflectors. The impingement locations of the first and second write beams on the first and second. reflectors may be varied to vary the angle of intersection at the fixed location.

    摘要翻译： 公开了一种用于在光波导中产生可变周期光栅的可调干涉仪。 干涉仪包括用于从输入光束产生第一和第二写入光束的分束器。 第一和第二反射器分别从分束器接收第一和第二写入光束，并且引导第一和第二写入光束在固定位置相交。 第一和第二写入光束的交点与第一和第二反射器上的第一和第二写入光束的冲击位置有关。 第一和第二写入光束的冲击位置在第一和第二。 反射器可以变化以改变固定位置处的交叉角。

    Coating impedance monitoring system
    8.
    发明授权
    Coating impedance monitoring system 有权
    涂层阻抗监测系统

    公开(公告)号：US07477060B2

    公开(公告)日：2009-01-13

    申请号：US11318709

    申请日：2005-12-27

    申请人： Steven Y. Yu ,  Michael R. Matthews ,  Gary A. Shreve

    发明人： Steven Y. Yu ,  Michael R. Matthews ,  Gary A. Shreve

    IPC分类号： G01R27/08 ,  G06F19/00

    CPC分类号： G01N17/02 ,  G01N33/44

    摘要： A detection system for monitoring an engineered structure includes an array of sensors disposable in a predetermined pattern on the engineered structure and disposable between a surface of the engineered structure and a protective coating substantially covering the surface. The detection system also includes a data acquisition system in communication with the array of sensors for retrieving data from the sensors. The array of sensors can provide data corresponding to at least one of a degree of cure of the protective coating, a health of the cured protective coating, and a corrosion rate of the engineered structure at each of the sensors.

    摘要翻译： 用于监测工程结构的检测系统包括在工程结构上以预定图案一次性的传感器阵列，并且在工程结构的表面和基本上覆盖该表面的保护涂层之间一次。 检测系统还包括与用于从传感器检索数据的传感器阵列通信的数据采集系统。 传感器阵列可以提供对应于保护涂层的固化程度，固化的保护涂层的健康状况和每个传感器处的工程结构的腐蚀速率中的至少一个的数据。