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：WO2002075402A1

公开(公告)日：2002-09-26

申请号：PCT/US2002/007753

申请日：2002-03-16

Applicant: CIDRA CORPORATION

Inventor： BAILEY, Timothy, J. ,  PUTNAM, Martin, A. ,  MOON, John ,  DAWSON, Jay, W. ,  PINTO, Joseph ,  SIRKIS, James, S. ,  SZCZEPANEK, Paul, S.

IPC: G02B6/28

CPC classification number: H01S3/094003 ,  G02B6/2713 ,  G02B6/2817 ,  G02B6/2821 ,  G02B6/2826 ,  G02B6/2852 ,  G02B6/4214 ,  H01S3/06708 ,  H01S3/094007 ,  H01S3/094019

Abstract: An optical coupling device is provided for coupling a pump light into an optical waveguide (10) such as an optical fiber or planar waveguide. An optical source (22) provides a pump light (25). A large diameter optical waveguide is arranged in relation to the optical source, has a diameter substantially greater than 0.3 microns, and includes a reflective surface (24) that reflects the pump light and provides a reflected pump light to the optical fiber. The reflective surface may be either a notched surface of a V-shaped indentation (12) or a cleaved end (68, 70) of the large diameter optical waveguide. Alternatively, the optical coupling device is includes a side tap lens (112) mounted to the large diameter optical waveguide (110) for directing pump light provided by the optical source. The side tap lens is arranged in relation to the optical source and includes a reflective surface 144) that reflects the pump light and provides a reflected pump light to the large diameter waveguide, which directs the pump light to the optical fiber. The reflective surface may include a coated surface to enhance reflectively.

Abstract translation: 提供了一种用于将泵浦光耦合到诸如光纤或平面波导的光波导（10）中的光耦合装置。 光源（22）提供泵浦光（25）。 大直径光波导相对于光源布置，具有基本上大于0.3微米的直径，并且包括反射表面（24），反射表面（24）反射泵浦光并向光纤提供反射的泵浦光。 反射表面可以是大直径光波导的V形凹口（12）或切割端（68,70）的缺口表面。 或者，光耦合装置包括安装到大直径光波导（110）的侧抽头透镜（112），用于引导由光源提供的泵浦光。 侧抽头透镜相对于光源布置，并且包括反射表面144），反射表面144）反射泵浦光并且向大直径波导提供反射的泵浦光，其将泵浦光引导到光纤。 反射表面可以包括涂覆表面以增强反射。

公开(公告)号：WO2004082174A1

公开(公告)日：2004-09-23

申请号：PCT/US2004/007644

申请日：2004-03-11

Applicant: CiDRA CORPORATION

Inventor： SIRKIS, James, S. ,  MOON, John, A. ,  JONES, Ralph ,  WINSTON, Charles, R. ,  FOURNIER, David, R. ,  PINTO, Joseph ,  BRUCATO, Robert, N. ,  DUNPHY, James, R. ,  CHESTNUT, Christopher, J.

IPC: H04B10/08

CPC classification number: G01J3/18 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/06

Abstract: An optical spectrum analyzer (OSA) (10) sequentially or selectively samples (or filters) a spectral band(s) (11) of light from a broadband optical input signal (12) and measures predetermined optical parameters of the optical signal (e.g., spectral profile) of the input light (12). The OSA (10) is a free-space optical device that includes a collimator assembly (15), a diffraction grating (20) and a mirror (22). A launch pigtail emits into free space the input signal through the collimator assembly (15) and onto the diffraction grating (20), which separates or spreads spatially the collimated input light, and reflects the dispersed light onto the mirror (22). A N4 plate (26) is disposed between the mirror 22 and the diffraction grating (20). The mirror reflects the separated light back through the N4 plate (26) to the diffraction grating (20), which reflects the light back through the collimating lens (18). The lens (18) focuses spectral bands of light (η 1- η N ) at different focal points in space. One of the spectral bands (11) is focused onto a receive pigtail (28), which then propagates to a photodetector (30). A pivoting mechanism (34) pivots the diffraction grating 20 or mirror (22) about a pivot point (36) to sequentially or selectively focus each spectral band (11) to the receive pigtail (28). A position sensor (42) detects the displacement of the diffraction grating (24) or mirror.

Abstract translation: 光谱分析仪（OSA）（10）顺序地或选择性地从宽带光输入信号（12）中采样（或滤波）光谱带（11），并且测量光信号的预定光学参数（例如， 输入光（12）的光谱分布）。 OSA（10）是包括准直器组件（15），衍射光栅（20）和反射镜（22）的自由空间光学装置。 发射尾纤通过准直器组件（15）将输入信号发射到自由空间中，并在衍射光栅（20）上分离或扩展空间上准直的输入光，并将分散的光反射到反射镜（22）上。 N4板（26）设置在反射镜22和衍射光栅（20）之间。 反射镜通过N4板（26）将分离的光反射回衍射光栅（20），其通过准直透镜（18）反射光。 透镜（18）在空间中的不同焦点处聚焦光的光谱带（eta1-etaN）。 光谱带（11）中的一个聚焦在接收引线（28）上，然后传输到光电检测器（30）。 枢转机构（34）围绕枢转点（36）枢转衍射光栅20或反射镜（22），以顺序地或选择性地将每个光谱带（11）聚焦到接收尾纤（28）。 位置传感器（42）检测衍射光栅（24）或反射镜的位移。

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。

公开(公告)号：WO2002075391A2

公开(公告)日：2002-09-26

申请号：PCT/US2002/009195

申请日：2002-03-15

Applicant: CIDRA CORPORATION

Inventor： BAILEY, Timothy, J. ,  PUTNAM, Martin, A. ,  DAWSON, Jay, W. ,  PINTO, Joseph ,  SIRKIS, James, S. ,  SZCZEPANEK, Paul, S.

IPC: G02B6/12

CPC classification number: G02B6/2932 ,  G02B6/02176 ,  G02B6/022 ,  G02B6/29322 ,  G02B6/29323 ,  G02B6/2938 ,  G02B6/29385 ,  G02B6/29398 ,  G02B6/4215

Abstract: An optical filter for filtering a spectral profile of an optical signal for providing an output signal having a desire gain profile, such as a flatten gain profile. The filter comprises an optical waveguide that includes a core disposed within a cladding having an outer dimension greater than 0.3 mm. A Bragg grating is imparted or written in the core of the waveguide that attenuates the received optical input signal in accordance with a defined reflection or transmission filter profile. The Bragg grating may be a slanted grating. The filter profile is complementary to the spectral gain profile of the input signal to provide an output signal having a substantially flat spectral profile of a desired wavelength band. The cladding of the waveguide may have a mechanically advantageous outer geometry (e.g., a "dogbone" shape) for allowing an axial compressive force to tune the Bragg grating. The waveguide may be packaged within an athermal device, which tunes the grating to compensate for temperature dependent changes. Further, thewaveguide may be packaged in a tuning device to selective tune the gratings to shift the center wavelength of the spectral profile of the filter, or to change the shape of the filter profile.

Abstract translation: 一种滤光器，用于对光信号的光谱分布进行滤波，以提供具有期望增益分布的输出信号，例如平坦增益分布。 滤波器包括光波导，其包括设置在具有大于0.3mm的外部尺寸的包层内的芯。 布拉格光栅被传递或写入波导的核心，根据定义的反射或透射滤波器轮廓衰减接收到的光输入信号。 布拉格光栅可以是倾斜光栅。 滤波器曲线与输入信号的频谱增益分布互补，以提供具有期望波长带的基本上平坦的谱分布的输出信号。 波导的包层可以具有用于允许轴向压缩力调谐布拉格光栅的机械有利的外部几何形状（例如，“狗骨”形状）。 波导可以封装在无热器件中，其调谐光栅以补偿温度依赖的变化。 此外，波导可以封装在调谐装置中以选择性地调谐光栅以移动滤光器的光谱轮廓的中心波长，或者改变滤光片轮廓的形状。