公开(公告)号：US20030155490A1

公开(公告)日：2003-08-21

申请号：US10373252

申请日：2003-02-24

Inventor： Muriel Medard ,  Stephen R. Chinn

IPC: G01J001/04

CPC classification number: H04B10/85

Abstract: Apparatus and techniques for detecting malfunctions, anomalies and attacks upon optical devices of a transparent all-optical network, including amplified links and optical nodes, of the network. A portion of an input signal of the optical device and a portion of an output signal from the optical device are coupled to an optical processing unit and a an optical to electrical signal converter. The electrical output signal of the converter is coupled to an electronic processing unit which generates a difference signal which is a function of the input and output signal portions for comparison to a predetermined set of parameters. The result of the comparison is an alarm signal indicative of the occurrence of a malfunction. Also described is an optical comparator capable of generating the difference signal which is indicative of perturbations in the optical device.

公开(公告)号：US20030147653A1

公开(公告)日：2003-08-07

申请号：US10110051

申请日：2003-01-23

Inventor： Christopher Ralph Pescod

IPC: H04B010/12 ,  G01J001/04

CPC classification number: G02B6/2861 ,  G02B6/2932 ,  H01Q3/2676

Abstract: A recirculating optical delay line 30 has a laser 32 controlled by wavelength control 33 so as to vary the wavelength of radiation over time to provide a first input 34 to an optical modulator 35. The modulator 35 modulates the intensity of the first input 34 with a pulsed electromagnetic frequency signal 36 to produce a pulsed modulated optical signal 39. The signal 39 passes through an optical coupler 40 into a delay loop 41 having a delay fibre 44 arranged to delay the signal 39 for a predetermined duration. The wavelength control 33 is arranged to vary the first input 35 so as to ensure that overlapping pulses of the signal 39 in the delay loop 41 are at different wavelengths, thereby inhibiting optical mixing effects between the overlapping pulses.

Abstract translation: 再循环光学延迟线30具有由波长控制33控制的激光器32，以便随时间改变辐射的波长，以向光调制器35提供第一输入端34.调制器35用第一输入端34的强度调制 脉冲电磁频率信号36产生脉冲调制光信号39.信号39通过光耦合器40进入具有延迟光纤44的延迟环路41，延迟光纤44被布置成将信号39延迟预定的持续时间。 波长控制器33被布置成改变第一输入35，以便确保延迟环路41中的信号39的重叠脉冲处于不同的波长，从而抑制重叠脉冲之间的光学混合效应。

公开(公告)号：US20030122064A1

公开(公告)日：2003-07-03

申请号：US10330923

申请日：2002-12-27

Inventor： Hiroyuki Tanaka ,  Takeshi Ishimaru

IPC: G01J001/04

CPC classification number: G02B6/2938 ,  G02B6/2937 ,  G02B6/32 ,  G02B6/327

Abstract: A collimator includes a capillary for holding optical fibers, a gradient index rod lens, and a cylindrical lens holder which holds the gradient index rod lens and has an annular end face connected to an end face of the capillary by an adhesive. By using the holder, the resistant of light power is improved and the degree of freedom of selection of the adhesive is increased.

Abstract translation: 准直器包括用于保持光纤的毛细管，梯度折射率棒状透镜和保持该渐变折射率棒状透镜并具有通过粘合剂连接到毛细管端面的环形端面的柱面透镜保持器。 通过使用保持器，光功率的提高和粘合剂选择的自由度提高。

公开(公告)号：US20030116702A1

公开(公告)日：2003-06-26

申请号：US10301947

申请日：2002-11-22

Inventor： Detlef Schulz ,  Gerhard Kurz

IPC: G01J001/04 ,  G01J005/08

CPC classification number: G01L9/0076

Abstract: The invention relates to a pressure sensor comprising a housing (12), a membrane (26) arranged in said housing and which can be deflected by the pressure to be measured, a light source (LED) having an optical axis, a light detector having an optical axis and a light blocker (36) that is coupled to the membrane and that can be deflected thereby, the blocker being arranged in the beam path of the light source. The light source and the light detector are arranged inside the housing (12), wherein their optical axes lie parallel to one another. A first prism (40) is assigned to the light source and a second prism (42) is assigned to the light detector in such a way that an uninterrupted beam path from the light source through both prisms to the light detector is obtained. To this end, the light blocker (36) is arranged between the two prisms.

Abstract translation: 本发明涉及一种压力传感器，包括壳体（12），布置在所述壳体中的膜（26），其可被被测量的压力偏转，具有光轴的光源（LED），具有 光轴和光阻挡件（36），所述光轴和光阻挡件（36）联接到所述膜并且可以由此偏转，所述阻挡件布置在所述光源的光束路径中。 光源和光检测器布置在壳体（12）内，其中它们的光轴彼此平行。 第一棱镜（40）被分配给光源，并且第二棱镜（42）被分配给光检测器，使得获得从光源通过两个棱镜到光检测器的不间断光束路径。 为此，光阻挡件（36）布置在两个棱镜之间。

公开(公告)号：US20030071202A1

公开(公告)日：2003-04-17

申请号：US09983047

申请日：2001-10-15

Inventor： Gregory H. Ames

IPC: G01J001/04

CPC classification number: G01C9/00

Abstract: The present invention relates to a fiber optic sensing device having utility as a roll sensor and/or a pitch sensor. The sensing device comprises at least one optical fiber supported in a structure, a movable mass supported within the structure, and at least one detector for detecting changes in tension in the at least one optical fiber due to movement of the movable mass. In the sensor of the present invention, the optical fiber(s) are the only deformable structures, thus maximizing sensitivity.

Abstract translation: 本发明涉及一种具有作为滚动传感器和/或俯仰传感器的实用性的光纤传感装置。 感测装置包括支撑在结构中的至少一个光纤，支撑在该结构内的可移动质量，以及至少一个检测器，用于检测由于可移动质量块的运动导致的至少一根光纤中的张力变化。 在本发明的传感器中，光纤是唯一的可变形结构，从而使灵敏度最大化。

公开(公告)号：US20030058433A1

公开(公告)日：2003-03-27

申请号：US10050889

申请日：2002-01-15

Inventor： Gilad Almogy ,  Boris Goldberg ,  Ron Naftali

IPC: G01J001/04 ,  G01N021/00

CPC classification number: G01N21/9501

Abstract: Apparatus for optical inspection includes a source of optical radiation, which is adapted to scan a spot of the radiation over a sample, whereby the radiation is scattered from the spot. A detection system includes at least first and second detectors optically coupled to receive the scattered radiation and to generate respective first and second outputs responsive thereto, the detection system being configured so that the first detector detects variations in the scattered radiation with a greater sensitivity than the second detector, while the second detector saturates at a higher intensity of the scattered radiation than does the first detector. A signal processor is coupled to receive the first and second outputs and to determine, responsive to the outputs, locations of defects on the sample.

公开(公告)号：US20030010905A1

公开(公告)日：2003-01-16

申请号：US10162480

申请日：2002-06-04

Inventor： Xin Simon Luo

IPC: G01J001/04 ,  G01J005/08

CPC classification number: G01J1/04 ,  G01J1/0204 ,  G01J1/0425 ,  G02B6/4204 ,  G02B6/421 ,  G02B6/4214

Abstract: A high speed interface for optoelectronic devices is disclosed that includes a housing adapted to receive a distal end of a fiber having a slanted end face. The end face of the fiber is optically coupled to an optoelectronic device mounted in the housing. The fiber cladding between the optoelectronic device and the fiber core may be polished or etched to reduce the thickness of the cladding to reduce the separation distance between the optoelectronic device and the slanted end face of the fiber. The reduced separation distance improves the optical coupling efficiency between the end face of the fiber and the optoelectronic device.

Abstract translation: 公开了一种用于光电子器件的高速接口，其包括适于容纳具有倾斜端面的光纤的远端的壳体。 光纤的端面与安装在壳体中的光电器件光学耦合。 可以对光电器件和光纤芯之间的光纤包层进行抛光或蚀刻，以减小包层的厚度，以减小光电器件与光纤的倾斜端面之间的间隔距离。 减小的间隔距离提高了光纤端面与光电器件之间的光耦合效率。

公开(公告)号：US20020162952A1

公开(公告)日：2002-11-07

申请号：US10048261

申请日：2002-05-24

Inventor： Frank-Jurgen Stuetzler

IPC: G01J001/04 ,  G01J005/08

CPC classification number: B60R21/0136 ,  B60R2021/0006 ,  B60R2021/01095 ,  G01B11/18 ,  G01L1/245 ,  G01L25/00

Abstract: A deformation sensor is described which does not require a supplementary sensor to check functionality. This deformation sensor includes an optical transmission medium (nullM1, nullM2), multiple transmission elements (S1, S2), which couple the light of various wavelengths (null1, null2) into the transmission medium (nullM1, nullM2), and multiple reception elements (E1, E2), which selectively couple the transmitted light out of the transmission medium (nullM1, nullM2) according to wavelength. An evaluation unit (AW) detects deviations between the output signals (a1, a2) of the reception elements (E1, E2) and signals a malfunction of the sensor if the deviations exceed a preset measure.

Abstract translation: 描述了一种变形传感器，其不需要补充传感器来检查功能。 该变形传感器包括将各种波长的光（lambd1，lambd2）耦合到传输介质（ÜM1，ÜM2）中的多个传输元件（S1，S2）和多个接收元件（ÜM1，ÜM2） E1，E2），其根据波长将透射光选择性地耦合到传输介质（ÜM1，ÜM2）之外。 评估单元（AW）检测接收元件（E1，E2）的输出信号（a1，a2）之间的偏差，并且如果偏差超过预设度量，则发送传感器的故障信号。

公开(公告)号：US20020162951A1

公开(公告)日：2002-11-07

申请号：US10073243

申请日：2002-02-13

Applicant: FUJI XEROX CO., LTD.

Inventor： Hidenori Yamada ,  Masao Funada ,  Takeshi Kamimura ,  Junji Okada ,  Shinya Kyozuka ,  Kazuhiro Sakai ,  Tsutomu Hamada ,  Shinobu Ozeki ,  Osamu Takanashi ,  Masaaki Miura ,  Takehiro Niitsu ,  Tomo Baba ,  Masashi Hisada ,  Kenichi Kobayashi

IPC: G01J001/04

CPC classification number: G02B6/42 ,  G02B6/2808 ,  G02B6/2817 ,  G02B6/3807 ,  G02B6/43

Abstract: A first optical wave guide 36 and a second optical wave guide 40 are connected to both sides of a planer optical waveguide 32, respectively. The other ends 36b, 40b of the first and second optical wave guides 36, 40 are extended over an upper surface 20 of an optical wiring circuit board 18. An electric wiring circuit 14 is connected to the other ends 36b, 40b of the first and second optical wave guides 36, 40, thereby constituting an optical wiring circuit 16. A plurality of optical wiring circuits 16 are superimposed on one another to thereby form an optical wiring circuits layered body 12. The electric wiring circuit 14 can be connected from one surface of the optical wiring circuit board 18, which makes it possible to facilitate the connection thereof.

Abstract translation: 第一光波导36和第二光波导40分别连接到平面光波导32的两侧。 第一和第二光波导36,40的另一端36b，40b在光布线电路板18的上表面20上延伸。电布线电路14连接到第一和第二光波导36,40的另一端36b，40b， 第二光波导36,40，从而构成光布线电路16.多个光布线电路16彼此重叠，从而形成光布线电路层叠体12.电布线电路14可以从一个表面 的光布线电路板18，这使得可以方便其连接。

公开(公告)号：US20020141010A1

公开(公告)日：2002-10-03

申请号：US10096283

申请日：2002-03-13

Inventor： Dave Rodgers ,  David Macki ,  Kent Dougall

IPC: G01J001/04 ,  H04B010/08 ,  G01J001/42 ,  G01J005/08

CPC classification number: H04B10/07955 ,  H04B10/077 ,  H04J14/02

Abstract: With current WDM technology a plurality of individual data channels exist on each fiber. Each of these data channels must be individually monitored in these WDM systems to ensure data signal quality. Monitoring of these signals is accomplished with the use of an optical performance monitor (OPM). An accurate known reference source is required for the OPM to provide reliable monitoring of signal data. The invention couples a reference signal simultaneously with a data signal and provides this combined optical signal to an OPM monitor for the purpose of obtaining high accuracy wavelength data at low cost.

Abstract translation: 对于当前的WDM技术，每个光纤上存在多个单独的数据信道。 这些数据通道中的每一个必须在这些WDM系统中进行单独监控，以确保数据信号质量。 通过使用光学性能监视器（OPM）来实现对这些信号的监视。 OPM需要精确的已知参考源来提供对信号数据的可靠监控。 本发明将参考信号与数据信号同时耦合，并将该组合的光信号提供给OPM监视器，以便以低成本获得高精度波长数据。