知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

45 records (took 0.02 seconds)

    Highly accurate in-situ determination of the refractivity of an ambient atmosphere
    31.
    发明授权
    Highly accurate in-situ determination of the refractivity of an ambient atmosphere 失效
    高精度地原位测定环境大气的折射率

    公开(公告)号：US5218426A

    公开(公告)日：1993-06-08

    申请号：US723950

    申请日：1991-07-01

    Applicant: John L. Hall ,  Peter J. Martin ,  Mark L. Eickhoff ,  Michael P. Winters

    Inventor： John L. Hall ,  Peter J. Martin ,  Mark L. Eickhoff ,  Michael P. Winters

    IPC: G01J9/02 ,  G01N21/41 ,  G01N21/45

    CPC classification number: G01N21/45 ,  G01J2009/0257 ,  G01N2021/4106

    Abstract: A highly accurate in-situ determination of the refractivity of an ambient atmosphere is disclosed, which determination is utilizable to enhance the accuracy of a quantity measurement. The system includes use of a refractometer exposed to an ambient atmosphere and having light directed thereto to form an optical interference fringe pattern having a dependence upon the refractivity of the ambient atmosphere. The fringe pattern is measured as a function of angle either by sequentially scanning a collimated input beam in angle while collecting and detecting the transmitted light, or by imaging (onto a multi-element detector) the angular exit space of the interferometer illuminated with a diverging input beam. The electrical output of the detector is processed to provide an output indicative of the index of refraction of the ambient atmosphere. The determined index of refraction is utilizable to enhance the accuracy of a quantity measurement, such as, for example, the distance measurement provided by a Fabry-Perot or displacement-measuring Michelson interferometer.

    Abstract translation: 公开了对环境大气的折射率的高精度原位测定，该确定可用于提高量测量的精度。 该系统包括使用暴露于环境大气中的折射计，并且具有指向其的光以形成具有依赖于环境大气的折射率的光学干涉条纹图案。 通过在收集和检测透射光的同时顺序地扫描准直的输入光束，或者通过成像（在多元件检测器上）成像（以多元件检测器）照射的干涉仪的角出射空间，将条纹图案作为角度测量， 输入光束。 处理检测器的电输出以提供指示环境大气的折射率的输出。 确定的折射率可用于提高量测量的精度，例如由法布里 - 珀罗或位移测量迈克尔逊干涉仪提供的距离测量。

    Coherency Reduction for Bandwidth Measurement
    35.
    发明申请
    Coherency Reduction for Bandwidth Measurement 审中-公开
    一致性降低带宽测量

    公开(公告)号：US20120162657A1

    公开(公告)日：2012-06-28

    申请号：US13411600

    申请日：2012-03-04

    Applicant: Robert J. Rafac ,  Scot T. Smith

    Inventor： Robert J. Rafac ,  Scot T. Smith

    IPC: G01J3/45

    CPC classification number: G01J3/02 ,  G01J1/4257 ,  G01J3/0205 ,  G01J3/027 ,  G01J3/0291 ,  G01J3/0297 ,  G01J3/1256 ,  G01J3/26 ,  G01J9/02 ,  G01J2009/0249 ,  G01J2009/0257 ,  G02B5/04 ,  G02B5/284 ,  G02B27/48 ,  G03F7/70025 ,  G03F7/70583 ,  H01S3/005

    Abstract: A method includes directing a portion of a laser beam output from a laser along a secondary beam path toward a detector, the secondary beam path being distinct from a main beam path of the laser beam; generating a bandwidth selective interference pattern of the laser beam on the detector; detecting, at the detector, a width of a fringe within the interference pattern to thereby measure measuring a bandwidth of the laser beam; and homogenizing the laser beam traveling along the secondary beam path prior to generation of the bandwidth selective interference pattern. The homogenizing includes diffusing the laser beam; and introducing a time dependent, position dependent, or both time and position dependent random modulation to the wavefront of the laser beam to reduce fluctuations in the detected fringe width and to reduce the influence of spatial coherence of the laser beam on the detected interference pattern.

    Abstract translation: 一种方法包括将从激光器输出的激光束的一部分沿着次级光束路径引向检测器，次级光束路径与激光束的主光束路径不同; 在检测器上产生激光束的带宽选择性干涉图案; 在检测器处检测干涉图案内的边缘的宽度，从而测量测量激光束的带宽; 并且在产生带宽选择干涉图案之前均匀化沿着次级光束路径行进的激光束。 均质化包括扩散激光束; 并且将与时间有关的位置依赖性或时间和位置相关随机调制引入到激光束的波前以减少检测到的条纹宽度的波动并减少激光束的空间相干性对检测到的干涉图案的影响。

    Wavelength filter and wavelength monitor device
    36.
    发明授权
    Wavelength filter and wavelength monitor device 失效
    波长滤波器和波长监测器

    公开(公告)号：US07283302B2

    公开(公告)日：2007-10-16

    申请号：US10549325

    申请日：2003-03-19

    Applicant: Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nisimura

    Inventor： Masao Imaki ,  Yoshihito Hirano ,  Makoto Sato ,  Akihiro Adachi ,  Shinichi Takagi ,  Yasunori Nisimura

    IPC: G02B5/30

    CPC classification number: G02B5/3083 ,  G01J9/02 ,  G01J2009/0257 ,  G02B7/008 ,  H01S5/02248 ,  H01S5/0687

    Abstract: A wavelength filter includes a solid material that is optically transparent and including a pair of planar surfaces substantially parallel to each other; and a supporting member that supports the solid material on a planar surface of the solid material other than the pair of planar surfaces, the supporting member having a rigidity higher than that of the solid material. The solid material is a birefringent material of which an optical axis makes a predetermined angle with respect to a normal to the pair of planar surfaces, and the wavelength filter selects light having a wavelength that is determined by an optical length between the pair of planar surfaces by resonating the light between the pair of planar surfaces.

    Abstract translation: 波长滤波器包括光学透明并且包括彼此大致平行的一对平面的固体材料; 以及支撑构件，其将所述固体材料支撑在除了所述一对平面之外的所述固体材料的平坦表面上，所述支撑构件的刚度高于所述固体材料的刚度。 固体材料是双折射材料，其光轴相对于一对平面的法线形成预定角度，并且波长滤光器选择具有由一对平面之间的光学长度确定的波长的光 通过使一对平面之间的光共振。

    Laser monitoring using both the reflected and transmitted interference patterns of an etalon
    37.
    发明申请
    Laser monitoring using both the reflected and transmitted interference patterns of an etalon 失效
    使用标准具的反射和透射干涉图案进行激光监测

    公开(公告)号：US20050062976A1

    公开(公告)日：2005-03-24

    申请号：US10668499

    申请日：2003-09-23

    Applicant: Michael Morris

    Inventor： Michael Morris

    IPC: G01B9/02 ,  G01J3/26 ,  G01J9/02

    CPC classification number: G01J9/02 ,  G01J2009/0257

    Abstract: A laser signal is monitored. The laser signal is forwarded to an etalon. Light transmitted through the etalon is detected. Light reflected from the etalon is detected. A ratio is calculated from the detected light transmitted through the etalon and the light reflected from the etalon.

    Abstract translation: 监测激光信号。 激光信号被转发到标准具。 检测到通过标准具的光。 检测到从标准具反射的光。 从通过标准具传输的检测光和从标准具反射的光计算出一个比率。

    Electronic method and apparatus for measuring optical wavelength and locking to a set optical wavelength of Fabry-Perot tunable cavity opto-electronic devices
    38.
    发明授权
    Electronic method and apparatus for measuring optical wavelength and locking to a set optical wavelength of Fabry-Perot tunable cavity opto-electronic devices 失效
    用于测量光学波长并锁定到法布里 - 珀罗可调谐腔光电器件的设定光学波长的电子方法和装置

    公开(公告)号：US06831450B2

    公开(公告)日：2004-12-14

    申请号：US10264060

    申请日：2002-10-03

    Applicant: Yakov Kogan

    Inventor： Yakov Kogan

    IPC: G01N2700

    CPC classification number: H01S5/18388 ,  G01J9/0246 ,  G01J2009/0257 ,  H01S5/0014 ,  H01S5/06808 ,  H01S5/18366

    Abstract: Apparatus and methods are provided for measuring a selected optical behavior of a tunable opto-electric device by using the electrical characteristics of the opto-electronic device. The benefit of the present invention is the elimination or reduction in complexity of optical wavelength reference hardware that is currently required for wavelength referencing and locking. Accordingly, the present invention reduces the cost and complexity of the optical packaging of tunable opto-electronic telecommunication components. Furthermore, the present invention also significantly simplifies optical and electronic design of system level products with tunable opto-electronic devices.

    Abstract translation: 提供了通过使用光电器件的电特性来测量可调谐光电器件的选定光学特性的装置和方法。 本发明的优点是消除或降低了当前波长参考和锁定所需的光学波长参考硬件的复杂性。 因此，本发明降低了可调谐光电通信部件的光学封装的成本和复杂性。 此外，本发明还显着简化了具有可调谐光电器件的系统级产品的光学和电子设计。

    Light frequency locker
    39.
    发明授权
    Light frequency locker 有权
    光频储物柜

    公开(公告)号：US06795459B2

    公开(公告)日：2004-09-21

    申请号：US09798721

    申请日：2001-03-01

    Applicant: John C. Tsai

    Inventor： John C. Tsai

    IPC: H01S310

    CPC classification number: H04B10/572 ,  G01J3/26 ,  G01J2009/0257 ,  H01S3/13 ,  H04B10/07 ,  H04B10/503

    Abstract: A light frequency locker (10) able to accept a light beam (14) generated by a controllable light source (12) into a light diverter (16) and impart to it a transverse displacement characteristic which can be detected in a light detection unit (20) connected to a processor (22). The processor (22) then controls the light source (12). Optionally, a light diverger (18) may be provided to enhance angular resolution. The light diverter (16) and the light diverger (18) may either transmit or reflect the light. The light diverter (16) may particularly include a diffraction grating (116, 156), Fabry-Perot interferometer (216), multiple slit plate (316), or an acousto-optical unit (416).

    Abstract translation: 一种能够将由可控光源（12）产生的光束（14）接收到光转向器（16）中并向其赋予横向位移特性的光频锁定器（10），所述横向位移特性可在光检测单元 20）连接到处理器（22）。 然后，处理器（22）控制光源（12）。 可选地，可以提供光发散器（18）以增强角度分辨率。 光分路器（16）和光分路器（18）可以传输或反射光。 光分路器（16）可以特别地包括衍射光栅（116,156），法布里 - 珀罗干涉仪（216），多个狭缝板（316）或声光单元（416）。

    Information card system
    40.
    发明授权
    Information card system 失效
    信息卡系统

    公开(公告)号：US06789738B2

    公开(公告)日：2004-09-14

    申请号：US10371928

    申请日：2003-02-21

    Applicant: Erica Tsai ,  John C. Tsai

    Inventor： Erica Tsai ,  John C. Tsai

    IPC: G06F700

    CPC classification number: H04B10/572 ,  G01J2009/0257 ,  G06K7/084 ,  G06K19/083 ,  G06K19/12 ,  H01S3/13 ,  H04B10/07 ,  H04B10/503

    Abstract: A data distribution system (10) including an information card (12) and a reader (14). The information card (12) includes visible indicia (20) on its front and stripe zones (34) and a ring zone (36) on its back. The zones (34, 36) are suitable for magnetically recording data, and optional data identifiers. The reader (14) may be a linear reader (14a) or a rotary reader (14b), and optionally may act automatically in response to reading a data identifier. If the reader (14) is a rotary reader (14b) the information card (12) may be loaded into a cartridge (16) which is loaded into the rotary reader (14b).

    Abstract translation: 一种包括信息卡（12）和读取器（14）的数据分发系统（10）。 信息卡（12）在其前面包括可见标记（20），在其背面包括条带区（34）和环形区（36）。 区域（34,36）适用于磁记录数据和可选数据标识符。 读取器（14）可以是线性读取器（14a）或旋转读取器（14b），并且可选地响应于读取数据标识符而自动地进行操作。 如果读取器（14）是旋转读取器（14b），信息卡（12）可以被装载到装载到旋转读取器（14b）中的盒（16）中。

Patent Agency Ranking