公开(公告)号：WO2002082165A3

公开(公告)日：2002-10-17

申请号：PCT/US2002/010490

申请日：2002-04-03

Applicant: CIDRA CORPORATION

Inventor： MOON, John ,  KERSEY, Alan, D. ,  SIRKIS, James, S. ,  DUNPHY, James ,  PINTO, Joseph ,  SZCZPPANEK, Paul ,  DAVIS, Michael

IPC: G02B27/10

Abstract: An dynamic optical filter 10 is provided to selectively attenuate or filter a wavelength band(s) of light (i.e., optical channel(s)) or a group(s) of wavelength bands of an optical WDM input signal 12. The optical filter is controllable or programmable to selectively provide a desired filter function. The optical filter 10 includes a spatial light modulator 36, which comprises an array of micromirrors 52 effectively forms a two-dimensional diffraction grating mounted in a retro-reflecting configuration. Each optical channel 14 is dispersed separately or overlappingly onto the array of micro-mirrors 52 along a spectral axis or direction 55 such that each optical channel or group of optical channels are spread over a plurality of micro-mirrors to effectively pixelate each of the optical channels or input signal. Each channel 14 or group of channels may be selectively attenuated by flipping or tilting a selected number of micro-mirrors to thereby deflect a portion of the incident radiation away from the return optical path. The micro-mirrors operate in a digital manner by flipping between a first and second position in response to a control signal 56 provided by a controller 58 in accordance with an attenuation algorithm and an input command 60. The switching algorithm may provide a bit (or pixel) map or look-up table indicative of the state of each of the micro-mirrors 52 of the array to selectively attenuate the input signal and provide a modified output signal 38 at optical fiber 40.

公开(公告)号：WO2002082166A2

公开(公告)日：2002-10-17

申请号：PCT/US2002/010612

申请日：2002-04-03

Applicant: CIDRA CORPORATION

Inventor： DAVIS, Michael ,  KERSEY, Alan, D. ,  MOON, John ,  DUNPHY, James ,  SIRKIS, James ,  PINTO, Joseph ,  SZCZEPANEK, Paul

IPC: G02B27/10

CPC classification number: G02B6/2931 ,  G02B6/278 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29394 ,  G02B6/29395 ,  G02B6/29398 ,  G02B6/3516 ,  G02B6/356 ,  G02B6/3588 ,  G02B6/359 ,  G02B26/0841 ,  G02B27/1006 ,  G02B27/1073 ,  G02B27/1086 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0018 ,  H04Q2011/0026

Abstract: A variable optical source (801) to selectively provide a desired optical output signal in response to a control signal is provided. The optical source includes an optical filter that attenuates a broadband optical input signal or a multi-spectral input signal (802). The optical filter is controllable or programmable to selectively provide a desired filter function. The optical filter (10) includes a spatial light modulator (36), which may comprise an array of micromirrors (52) that effectively forms a two-dimensional diffraction grating mounted in a retro-reflecting configuration. The input optical signal is dispersed onto the array of micromirrors (52) along a spectral axis or direction (55) such that input light is spread over a plurality of micromirrors to effectively pixelate the light. The broadband light or signals of the multi-spectral input light is selectively attenuated by flipping or tilting a selected number of micromirrors to thereby deflect a portion of the incident radiation away from the return optical path. The micro-mirrors operate in a digital manner by flipping between a first and second position in response to a control signal (56) provided by a controller (58) in accordance with an attenuation algorithm and an input command (60).

Abstract translation: 提供了用于响应于控制信号选择性地提供期望的光输出信号的可变光源（801）。 光源包括衰减宽带光输入信号或多光谱输入信号的滤光器（802）。 光学滤波器是可控的或可编程的，以选择性地提供期望的滤波器功能。 滤光器（10）包括空间光调制器（36），其可以包括有效地形成安装在回射构造中的二维衍射光栅的微镜阵列（52）。 输入光信号沿着光谱轴或方向（55）分散在微镜阵列（52）上，使得输入光分布在多个微镜上以有效地使光像素化。 多光谱输入光的宽带光或信号通过翻转或倾斜选定数量的微镜来选择性地衰减，从而使一部分入射辐射偏离返回光路。 响应于根据衰减算法和输入命令（60）由控制器（58）提供的控制信号（56），微镜以数字方式操作，通过在第一和第二位置之间翻转。

公开(公告)号：WO2004025562A1

公开(公告)日：2004-03-25

申请号：PCT/US2003/029164

申请日：2003-09-12

Applicant: CIDRA CORPORATION

Inventor： MOON, John ,  PUTNAM, Martin, A. ,  KERSEY, Alan, D. ,  LI, Tuo ,  DUNPHY, James ,  DIDDEN, F., Kevin

IPC: G06T5/00

CPC classification number: G03H1/0272 ,  B01J2219/00459 ,  B01J2219/00463 ,  B01J2219/0047 ,  B01J2219/005 ,  B01J2219/00547 ,  B01J2219/00576 ,  B01J2219/00702 ,  B01L3/502761 ,  B01L3/5085 ,  B01L2200/0636 ,  B01L2200/0668 ,  B01L2300/0654 ,  B01L2400/0409 ,  B01L2400/0457 ,  B01L2400/0487 ,  G03H2210/53 ,  G03H2230/10 ,  G03H2270/20 ,  G03H2270/24

Abstract: A methods and apparatus for labeling an item using diffraction grating-based encoded optical identification elements (8) includes an optical substrate (10) having at least one diffraction grating (12) disposed therein. The grating (12) has one or more colocated pitches A which represent a unique identification digital code that is detected when illuminated by incident light (24). The incident light (24) may be directed transversely from the side of the substrate (10) (or from an end) with a narrow band (single wavelength) or multiple wavelength source, and the code is represented by a spatial distribution of light or a wavelength spectrum, respectively, or a combination thereof. The element (8) can provide a large number of unique codes, e.g., greater than 67 million codes, and can withstand harsh environments. The encoded element (8) may be used to label any desired item, such as large or small objects, products, solids, powders, liquids, gases, plants, minerals, cells and/or animals, or any combination of or portion of one or more thereof. The label may be used for many different purposes, such as for sorting, tracking, identification, verification, authentication, anti-theft/anti-counterfeit, security/anti-terrorism, or for other purposes. In a manufacturing environment, the elements (8) may be used to track inventory for production information or sales of goods/products.

Abstract translation: 使用基于衍射光栅的编码光学识别元件（8）来标记物品的方法和设备包括具有设置在其中的至少一个衍射光栅（12）的光学基板（10）。 光栅（12）具有一个或多个共同定位的间距A，其表示当被入射光（24）照射时检测到的唯一识别数字码。 入射光（24）可以从具有窄带（单波长）或多个波长源的基板（10）侧（或从一端）横向引导，并且代码由光的空间分布或 波长谱，或其组合。 元件（8）可以提供大量唯一的代码，例如大于67百万个代码，并且可以承受恶劣的环境。 编码元件（8）可用于标记任何所需物品，例如大或小物体，产品，固体，粉末，液体，气体，植物，矿物，细胞和/或动物，或任何组合或一部分 或更多。 该标签可用于许多不同的目的，例如用于分类，跟踪，识别，验证，认证，防盗/防伪，安全/反恐，或用于其他目的。 在制造环境中，元件（8）可用于跟踪生产信息的库存或货物/产品的销售。

公开(公告)号：WO2002099368A1

公开(公告)日：2002-12-12

申请号：PCT/US2002/017111

申请日：2002-05-31

Applicant: CIDRA CORPORATION

Inventor： MOON, Jhon ,  JONES, Raph ,  WINSTON, Charles, ,  SIRKIS, James ,  FOURNIER, David ,  PINTO, Joseph ,  BRUCATO, Robert, N. ,  DUNPHY, James ,  CHESTNUT, Christopher

IPC: G01J3/06

CPC classification number: G01J3/28 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/32 ,  G01J3/36 ,  G01J2003/064 ,  G01J2003/1819 ,  G02B6/2706 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29385 ,  G02B6/29398 ,  G02B6/3512 ,  G02B6/359 ,  G02B6/4215 ,  G02B6/4246 ,  H04B10/077 ,  H04B10/07955 ,  H04Q2011/0026 ,  H04Q2011/0049 ,  H04Q2011/0083

Abstract: An optical channel monitor is provided that sequentially or selectively filters an optical channel(s) (11) of light from a (WDM) optical input signal (12) and senses predetermined parameters of the each filtered optical signal (e.g., channel power, channel presence, signal-noise-ratio). The OCM (200) is a free-space optical device that includes a collimator assembly (224), a diffraction grating (214) and a mirror (202). A launch pigtail (220) emits into free space the input signal through the collimator assembly (224) and onto the diffraction grating (214), which separates spatially each of the optical channels (11) of the collimated light, and reflects the sep arated channels of light onto the mirror (202). The mirror reflects the separated light back to the diffraction grating (214), which reflects the channels of light back through the collimating lens. The lens focuses each separated channel of light (λ 1 - λ N ) at a different focal point in space. One of the optical channels (11) is focused onto a receive pigtail (204), which then propagates to a photodetector (206). A pivoting mechanism (201) pivots the mirror about a pivot point (203) to sequentially or selectively focus each optical channel (11) to the receive pigtail (204). A position sensor detects the displacement of the mirror. The position sensor comprises additional mirror (210, 212) mounted adjacently the grating (214). These mirrors deflect light reflected from the scanning mirror (202) into the pigtail (242) and provide there by start and stop reference signals for a scan cycle of the OCM.

Abstract translation: 提供了一种光通道监视器，其从（WDM）光输入信号（12）中顺序地或选择性地滤光光通道（11），并且感测每个滤波光信号的预定参数（例如，通道功率，通道 存在，信噪比）。 OCM（200）是包括准直器组件（224），衍射光栅（214）和反射镜（202）的自由空间光学装置。 发射尾纤（220）通过准直器组件（224）向衍射光栅（214）向空闲空间发射输入信号，该衍射光栅在空间上分离准直光的每个光通道（11），并将其分开 光通道到镜子（202）上。 反射镜将分离的光反射回衍射光栅（214），其反射通过准直透镜的光通道。 透镜将每个分离的光通道（λ1-λN）聚焦在空间中的不同焦点处。 光通道（11）中的一个被聚焦到接收引线（204）上，接收引线（204）然后传播到光电检测器（206）。 枢转机构（201）围绕枢转点（203）枢转镜子，以顺序地或选择性地将每个光学通道（11）聚焦到接收尾纤（204）。 位置传感器检测反射镜的位移。 位置传感器包括相邻地安装光栅（214）的附加反射镜（210,212）。 这些反射镜将从扫描镜（202）反射的光偏转到尾纤（242）中，并通过启动和停止OCM的扫描周期的参考信号来提供。

公开(公告)号：WO2002082165A2

公开(公告)日：2002-10-17

申请号：PCT/US2002/010490

申请日：2002-04-03

Applicant: CIDRA CORPORATION

Inventor： MOON, John ,  KERSEY, Alan, D. ,  SIRKIS, James, S. ,  DUNPHY, James ,  PINTO, Joseph ,  SZCZPPANEK, Paul ,  DAVIS, Michael

IPC: G02B27/10

CPC classification number: G02B6/4246 ,  G02B6/262 ,  G02B6/266 ,  G02B6/2713 ,  G02B6/272 ,  G02B6/278 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29314 ,  G02B6/29395 ,  G02B6/29398 ,  G02B6/3516 ,  G02B6/356 ,  G02B6/3588 ,  G02B6/359 ,  G02B6/4226 ,  G02B26/0833 ,  G02B26/0841 ,  G02B27/1006 ,  G02B27/1073 ,  G02B27/108 ,  G02B27/1086 ,  G02B27/126 ,  G02B27/144 ,  G02B27/147 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0221 ,  H04Q2011/0009 ,  H04Q2011/0026

Abstract: An dynamic optical filter 10 is provided to selectively attenuate or filter a wavelength band(s) of light (i.e., optical channel(s)) or a group(s) of wavelength bands of an optical WDM input signal 12. The optical filter is controllable or programmable to selectively provide a desired filter function. The optical filter 10 includes a spatial light modulator 36, which comprises an array of micromirrors 52 effectively forms a two-dimensional diffraction grating mounted in a retro-reflecting configuration. Each optical channel 14 is dispersed separately or overlappingly onto the array of micro-mirrors 52 along a spectral axis or direction 55 such that each optical channel or group of optical channels are spread over a plurality of micro-mirrors to effectively pixelate each of the optical channels or input signal. Each channel 14 or group of channels may be selectively attenuated by flipping or tilting a selected number of micro-mirrors to thereby deflect a portion of the incident radiation away from the return optical path. The micro-mirrors operate in a digital manner by flipping between a first and second position in response to a control signal 56 provided by a controller 58 in accordance with an attenuation algorithm and an input command 60. The switching algorithm may provide a bit (or pixel) map or look-up table indicative of the state of each of the micro-mirrors 52 of the array to selectively attenuate the input signal and provide a modified output signal 38 at optical fiber 40.

Abstract translation: 提供动态滤光器10以选择性地衰减或过滤光学WDM输入信号12的波长带（即，光学通道）或波长带的组。滤光器是 可控或可编程以选择性地提供期望的滤波器功能。 滤光器10包括空间光调制器36，其包括微镜阵列52，其有效地形成安装在后向反射构造中的二维衍射光栅。 每个光通道14沿着光谱轴或方向55分开或重叠地分散或重叠地分散在微镜52的阵列上，使得每个光通道或一组光通道分布在多个微镜上以有效地像素化每个光学 通道或输入信号。 每个通道14或通道组可以通过翻转或倾斜选定数量的微反射镜来选择性地衰减，从而使入射辐射的一部分偏离返回光路。 响应于控制器58根据衰减算法和输入命令60提供的控制信号56，微镜以数字方式操作，通过在第一和第二位置之间翻转。切换算法可以提供位（或 像素）映射或查找表，其指示阵列的每个微镜52的状态，以选择性地衰减输入信号，并在光纤40提供经修改的输出信号38。