Distributed crossbar switch
    31.
    发明授权
    Distributed crossbar switch 失效
    分布式交叉开关

    公开(公告)号:US4901305A

    公开(公告)日:1990-02-13

    申请号:US138619

    申请日:1987-12-28

    IPC分类号: H04B10/02 H04Q3/52

    CPC分类号: H04B10/801 H04L12/5696

    摘要: The Invention provides a locally distributed crossbar switch to optically connect many computer processors and memories in arbitrary permutation an without interruption. A process or and an associated memory can be packaged together, taking advantage of the fact that the distributed crossbar switch employs local switching. At the same time, processor-memory pairs can be physically separated from other such processor-memory pairs, and by great distance.

    摘要翻译: 本发明提供了一种局部分布的交叉开关,用于以任意的排列方式将许多计算机处理器和存储器光学连接而不间断。 利用分布式交叉开关采用本地交换的事实,可以将过程或相关联的存储器打包在一起。 同时,处理器 - 存储器对可以与其他这样的处理器 - 存储器对以及远距离物理分离。

    Interferometric thermal detector
    32.
    发明授权
    Interferometric thermal detector 失效
    干涉测温仪

    公开(公告)号:US4785174A

    公开(公告)日:1988-11-15

    申请号:US8216

    申请日:1987-01-28

    摘要: An interferometric sensor (10) employs a sensing optical fiber (12) and a reference optical fiber (14). The sensing fiber (12) has a coating 16 thereon responsive to radiated thermal energy while the reference fiber is shielded therefrom. Both the sensing and reference fibers are subjected to the same ambient environment so that both fibers are subjected to heating by convection or conduction in essentially the same amounts. As a result, the sensor (10) is substantially nonresponsive to convected or conducted thermal energy while being highly responsive to radiated energy, particularly in the 6-30 micron wavelength region.

    摘要翻译: 干涉式传感器(10)采用感测光纤(12)和参考光纤(14)。 感测光纤(12)上具有一个涂层16,其上响应于辐射的热能,而参考光纤被屏蔽。 感测和参考光纤都经受相同的周围环境,使得两个纤维通过对流或传导以基本上相同的量进行加热。 结果,传感器(10)对对流或传导的热能基本上是无响应的,同时对辐射能高度响应,特别是在6-30微米波长区域。

    Fiber optic transducer for measuring current or magnetic field
    33.
    发明授权
    Fiber optic transducer for measuring current or magnetic field 失效
    用于测量电流或磁场的光纤传感器

    公开(公告)号:US4348587A

    公开(公告)日:1982-09-07

    申请号:US207107

    申请日:1980-11-17

    CPC分类号: G01R33/0327 G01R15/248

    摘要: A multi-mode optical fiber is used to detect electrical currents or magnetic fields from a remote source. The optical fiber, which serves as the sensor, is composited with metal capable of conducting electricity. Optical radiation is introduced into the fiber from a source which may be either coherent or incoherent. An electrical current is applied to the portion of the electrically conducting optical fiber and a magnetic field is applied to the current-carrying optical fiber. A known value of one permits a determination of the presence or absence of the other through electromotive forces on a metallic conductor in a magnetic field, which are used to induce differential phase shifts (coherent optical radiation input) or losses (incoherent optical radiation input) between the fiber modes. These phase shifts or losses are detected by a suitable detector. For a magnetic field of 1 kGauss, good linearity is obtained in the 5 to 2,000 mA current range. Magnetic fields of about 0.1 G to 1 kG are detected employing a current source of about 5 mA to 50 A.

    摘要翻译: 多模光纤用于检测来自远程源的电流或磁场。 用作传感器的光纤与能够导电的金属复合。 从可能是相干或不相干的光源将光辐射引入到光纤中。 对导电光纤的部分施加电流,并且对载流光纤施加磁场。 一个已知的值允许通过用于诱导差分相移(相干光辐射输入)或损耗(非相干光辐射输入)的磁场中的金属导体上的电动势来确定另一个的存在或不存在, 在光纤模式之间。 这些相移或损耗由合适的检测器检测。 对于1 kGauss的磁场,在5至2,000 mA电流范围内可获得良好的线性度。 使用约5mA至50A的电流源检测约0.1G至1kG的磁场。

    Adaptive beam forming antenna system using a tunable impedance surface
    34.
    发明授权
    Adaptive beam forming antenna system using a tunable impedance surface 有权
    自适应波束形成天线系统使用可调阻抗表面

    公开(公告)号:US07245269B2

    公开(公告)日:2007-07-17

    申请号:US10844104

    申请日:2004-05-11

    IPC分类号: H01Q15/02 H01Q15/24 H01Q1/38

    CPC分类号: H01Q3/46 H01Q19/104

    摘要: A method of and apparatus for beam steering. A feed horn is arranged so that the feed horn illuminates a tunable impedance surface comprising a plurality of individually tunable resonator cells, each resonator element having a reactance tunable by a tuning element associated therewith. The tuning elements associated with the tunable impedance surface are adjusted so that the resonances of the individually tunable resonator cells are varied in a sequence and the resonances of the individually tunable resonator cells are set to values which improve transmission of information via the tunable impedance surface and the feed horn.

    摘要翻译: 一种用于光束转向的方法和装置。 馈电喇叭布置成使得馈电喇叭照亮包括多个单独可调谐谐振器单元的可调谐阻抗表面,每个谐振器元件具有可由与其相关联的调谐元件调谐的电抗。 调节与可调谐阻抗表面相关联的调谐元件,使得单独可调谐谐振器单元的谐振以一个顺序变化,并且可单独调谐的谐振器单元的谐振被设置为改善经由可调谐阻抗表面的信息传输的值, 饲料角。

    Intrusion detection system for secure fiber optics
    36.
    发明授权
    Intrusion detection system for secure fiber optics 失效
    用于安全光纤的入侵检测系统

    公开(公告)号:US06819849B1

    公开(公告)日:2004-11-16

    申请号:US07228793

    申请日:1988-07-29

    IPC分类号: G02B514

    CPC分类号: G02B6/0288

    摘要: Methods and apparatus are disclosed for an intrusion detection system for secure fiber optic communication systems. A guard signal is transmitted over the optical fiber communication link and both the modal power and modal phase delay of this signal are monitored. Intrusions into the link for the purpose of intercepting information being transmitted, cause changes in the modal phase delay and power of the guard signal. These changes, when detected by the monitoring system, indicate the presence of an intruder. A fiber profile which is optimal for both transmission and intrusion detection purposes is described.

    摘要翻译: 公开了用于安全光纤通信系统的入侵检测系统的方法和装置。 通过光纤通信链路发送保护信号,并监视该信号的模式功率和模态相位延迟。 为了拦截正在发送的信息的目的而引入到链路中,导致保护信号的模态相位延迟和功率的改变。 当监控系统检测到这些更改时,会显示入侵者的存在。 描述了对于传输和入侵检测目的都是最佳的光纤轮廓。

    Monolithic single pole double throw RF MEMS switch
    37.
    发明授权
    Monolithic single pole double throw RF MEMS switch 失效
    单片双极射频MEMS开关

    公开(公告)号:US06440767B1

    公开(公告)日:2002-08-27

    申请号:US09767321

    申请日:2001-01-23

    IPC分类号: H01L2100

    CPC分类号: H01H59/0009

    摘要: Apparatus for a micro-electro-mechanical switch that provides single pole, double throw switching action. The switch comprises a single RF input line and two RF output lines. The switch additionally comprises two armatures, each mechanically connected to a substrate at one end and having a conducting transmission line at the other end with a suspended biasing electrode located on top of or within a structural layer of the armature. Each conducting transmission line has conducting dimples that protrude beyond the bottom of the armature carrying the conducting transmission line. Closure of an armature causes the dimples of the corresponding conducting transmission line to mechanically and electrically engage the RF input line and the corresponding RF output line, thus directing RF energy from the RF input line to the selected RF output line.

    摘要翻译: 用于微机电开关的装置,其提供单极双掷切换动作。 该开关包括单个RF输入线和两个RF输出线。 开关另外包括两个电枢,每个电枢在一端机械地连接到基板,并且在另一端处具有导电传输线,其中悬置的偏置电极位于电枢的结构层的顶部或内部。 每个导电传输线具有突出超过承载导电传输线的电枢的底部的导电凹坑。 衔铁的闭合使相应的导电传输线的凹坑机械地和电气地接合RF输入线和相应的RF输出线,从而将RF能量从RF输入线引导到所选择的RF输出线。

    Spectral filter for integrated optics
    38.
    发明授权
    Spectral filter for integrated optics 失效
    集成光学滤光片

    公开(公告)号:US4701009A

    公开(公告)日:1987-10-20

    申请号:US697802

    申请日:1985-02-04

    IPC分类号: G02B6/12 G02B6/34 G02B6/10

    CPC分类号: G02B6/29374 G02B6/12007

    摘要: A spectral filter for an integrated optic application, such as in an optical demultiplexer (14), is provided and includes a common input waveguide (20) integrally connected to a pair of optical output waveguides (22, 24). The material selected for the output waveguides (22, 24) can be semiconductor material that provides a low index of refraction for a specific wavelength in one output waveguide and a relatively higher index of refraction for the same wavelengths in the other output waveguide, the output waveguide materials being interrelated in that they have a common index of refraction for at least one wavelength across the spectrum of radiation. An incident spectrum of radiation (16) can be split into at least a pair of bandwidths of radiation to provide a spectral filter function.

    摘要翻译: 提供了用于集成光学应用的光谱滤波器,例如在光解复用器(14)中,并且包括与一对光输出波导(22,24)整体连接的公共输入波导(20)。 选择用于输出波导(22,24)的材料可以是对于一个输出波导中的特定波长提供低折射率的折射率和在另一个输出波导中相同波长的相对较高的折射率的半导体材料,输出 波导材料是相互关联的,因为它们对于辐射光谱的至少一个波长具有共同的折射率。 辐射(16)的入射光谱可以被分裂成至少一对辐射带宽以提供光谱滤波器功能。

    Organic optical waveguide device and method of making
    39.
    发明授权
    Organic optical waveguide device and method of making 失效
    有机光波导器件及其制造方法

    公开(公告)号:US4609252A

    公开(公告)日:1986-09-02

    申请号:US579791

    申请日:1984-02-15

    IPC分类号: B29D11/00 G02B6/28 G02B6/10

    CPC分类号: G02B6/2804 B29D11/00663

    摘要: The specification describes a process for forming an organic optical waveguide device of predetermined planar geometry. First a layer of an organic photoactive composition (for example, phenylglyoxylic acid or a derivative thereof) is deposited to a predetermined thickness on a given substrate. The photoactive composition is characterized by being capable of forming a waveguiding material upon polymerization. Next, the deposited photoactive layer is exposed to a beam of ultraviolet radiation through a mask which defines the desired planar geometry for the device to be formed. Finally, the exposed photoactive layer is developed to leave behind a portion of the photoactive material which has the desired planar geometry and which is an organic waveguiding material.

    摘要翻译: 本说明书描述了一种用于形成具有预定平面几何形状的有机光波导器件的工艺。 首先,将一层有机光活性组合物(例如,苯基乙醛酸或其衍生物)沉积到给定基底上的预定厚度。 光活性组合物的特征在于能够在聚合时形成波导材料。 接下来,沉积的光活性层通过掩模暴露于紫外线辐射束,该掩模限定待形成的器件的所需平面几何形状。 最后,曝光的光敏层被开发以留下具有所需平面几何形状并且是有机波导材料的光活性材料的一部分。

    Integrated optics thin film devices and fabrication thereof
    40.
    发明授权
    Integrated optics thin film devices and fabrication thereof 失效
    集成光学薄膜器件及其制造

    公开(公告)号:US4403825A

    公开(公告)日:1983-09-13

    申请号:US206797

    申请日:1980-11-14

    IPC分类号: G02B6/12 G02B6/124 G02B5/174

    CPC分类号: G02B6/12004 G02B6/1245

    摘要: There is disclosed a class of integrated optics devices comprising a variety of optical elements such as waveguides, lenses, couplers and the like, and a method of fabrication thereof. In particular, there is disclosed an aberration-free geodesic lens for integrated optics devices. In these devices, photo-induced refractive index changes in chalcogenide glass films may be used to fabricate a radial index of refraction distribution profile in order to form a lens. By varying the exposure of the thin film to ultra-violet light, variable index of refraction profiles may be formed. The variable profile may itself form the lens or, preferably, a thin film may be deposited on an aspherical geodesic lens in order to provide correction of focal length, thus reducing the mechanical tolerances required in the grinding process. These devices thus permit a degree of freedom heretofore unobtained in thin film optical waveguides for use in such devices as a spectrum analyzer operating at the 0.9 to 1.0 micrometer region of the infrared. An important advantage of this approach is that it is compatible with the use of high index of refraction materials, which are basic materials for electro-optic and acousto-optic devices.

    摘要翻译: 公开了一类包括波导,透镜,耦合器等各种光学元件的集成光学器件及其制造方法。 特别地,公开了一种用于集成光学器件的无像差的测地镜。 在这些器件中,硫族化物玻璃薄膜的光诱导折射率变化可用于制造折射分布分布的径向折射率以形成透镜。 通过改变薄膜对紫外光的曝光,可以形成可变的折射率分布。 可变轮廓本身可以形成透镜,或者优选地,薄膜可以沉积在非球面测地镜上,以便提供焦距的校正,从而减少研磨过程中所需的机械公差。 因此,这些装置允许在诸如在红外线的0.9至1.0微米区域中操作的频谱分析仪的薄膜光波导中获得的自由度是不可获得的。 这种方法的一个重要优点是它与使用高折射率材料兼容,折射材料是电光和声光器件的基本材料。