公开(公告)号：WO2006110297B1

公开(公告)日：2007-03-08

申请号：PCT/US2006010875

申请日：2006-03-24

Applicant: CAPELLA PHOTONICS INC ,  DAVIS JOSEPH E ,  GARRETT MARK H ,  TREMAINE BRIAN ,  DARLING MICHAEL

Inventor： DAVIS JOSEPH E ,  GARRETT MARK H ,  TREMAINE BRIAN ,  DARLING MICHAEL

IPC: G02B6/26

CPC classification number: G02B6/356 ,  G02B6/2706 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3588 ,  G02B6/3594

Abstract: A wavelength selective switch architecture (100) for ROADMs for switching the spectral channels of a multi-channel, multi- wavelength optical signal between input and output ports employs a biaxial MEMS port mirror array (106) for optimal coupling efficiency and ITU grid alignment, an anamorphic beam expander (110) for expanding input optical signals to create an elongated beam profile (146), a diffraction grating (112) for spatially separating the spectral channels, an anamorphic focusing lens system (116), an array (118) of biaxial elongated channel MEMS micromirrors, a built-in Optical Channel Monitor, and an electronic feedback control system. The biaxial channel micromirrors are rotatable about one axis to switch spectral channels between ports, and are rotatable about an orthogonal axis to vary the coupling of the spectral channel to an output port and control attenuation of the spectral signal for complete blocking or for a predetermined power level. The architecture affords hitless switching, near notchless operation, ITU channel alignment, high passband, stability over a broad temperature range, and minimum insertion loss through the optimal coupling efficiency enabled by the feedback control system.

Abstract translation: 用于ROADM的用于在输入和输出端口之间切换多信道，多波长光信号的频谱信道的波长选择性开关架构（100）采用双轴MEMS端口镜阵列（106），用于最佳耦合效率和ITU网格对准， 变形光束扩展器（110），用于扩展输入光信号以产生细长的光束轮廓（146），用于在空间上分离光谱通道的衍射光栅（112），变形聚焦透镜系统（116），阵列（118） 双轴细长通道MEMS微镜，内置光通道监视器和电子反馈控制系统。 双轴通道微镜可以围绕一个轴线旋转以在端口之间切换频谱通道，并且可以绕正交轴线旋转以改变频谱通道与输出端口的耦合，并且控制光谱信号的衰减以完全阻塞或用于预定功率 水平。 该架构通过反馈控制系统实现的最佳耦合效率，提供无缝切换，接近无缺陷操作，ITU通道对齐，高通带，宽温度范围内的稳定性和最小插入损耗。

公开(公告)号：WO2006110297A3

公开(公告)日：2006-10-19

申请号：PCT/US2006/010875

申请日：2006-03-24

Applicant: CAPELLA PHOTONICS, INC. ,  DAVIS, Joseph, E. ,  GARRETT, Mark, H. ,  TREMAINE, Brian ,  DARLING, Michael

Inventor： DAVIS, Joseph, E. ,  GARRETT, Mark, H. ,  TREMAINE, Brian ,  DARLING, Michael

IPC: G02B6/26

Abstract: A wavelength selective switch architecture (100) for ROADMs for switching the spectral channels of a multi-channel, multi- wavelength optical signal between input and output ports employs a biaxial MEMS port mirror array (106) for optimal coupling efficiency and ITU grid alignment, an anamorphic beam expander (110) for expanding input optical signals to create an elongated beam profile (146), a diffraction grating (112) for spatially separating the spectral channels, an anamorphic focusing lens system (116), an array (118) of biaxial elongated channel MEMS micromirrors, a built-in Optical Channel Monitor, and an electronic feedback control system. The biaxial channel micromirrors are rotatable about one axis to switch spectral channels between ports, and are rotatable about an orthogonal axis to vary the coupling of the spectral channel to an output port and control attenuation of the spectral signal for complete blocking or for a predetermined power level. The architecture affords hitless switching, near notchless operation, ITU channel alignment, high passband, stability over a broad temperature range, and minimum insertion loss through the optimal coupling efficiency enabled by the feedback control system.

公开(公告)号：WO2005106549A1

公开(公告)日：2005-11-10

申请号：PCT/US2005/011679

申请日：2005-04-06

Applicant: CAPELLA, PHOTONICS, INC. ,  TREMAINE, Brian, P. ,  DAVIS, Joseph, E.

Inventor： TREMAINE, Brian, P. ,  DAVIS, Joseph, E.

IPC: G02B6/26

CPC classification number: G02B6/3586 ,  G02B6/3512 ,  G02B6/356 ,  G02B6/3588 ,  G02B6/359 ,  G02B26/0833 ,  G05B19/404 ,  G05B2219/41434

Abstract: A system and method for canceling disturbance in a MEMS device. The system 200 includes a MEMS device 203, which may include a substrate 205 and a plurality of individually movable MEMS elements 203-1 through 203-N, and a control assembly 207. The optical system 200 may be utilized in and/or form a portion of any optical apparatus employing an array of MEMS devices. The control assembly 207 uses feed-forward control signals to cancel disturbance in the MEMS device 203, and more particularly, to cancel disturbance in the non-switched or static mirrors of the MEMS device 203 caused by switched or moving mirrors.

Abstract translation: 一种用于消除MEMS器件中的干扰的系统和方法。 系统200包括MEMS器件203，其可以包括衬底205和多个可单独移动的MEMS元件203-1至203-N以及控制组件207.光学系统200可以用于和/或形成 使用MEMS器件阵列的任何光学装置的一部分。 控制组件207使用前馈控制信号来消除MEMS器件203中的干扰，更具体地，消除由开关或移动的反射镜引起的MEMS器件203的非开关或静态反射镜中的干扰。

公开(公告)号：WO2012125390A2

公开(公告)日：2012-09-20

申请号：PCT/US2012/028189

申请日：2012-03-08

Applicant: CAPELLA PHOTONICS, INC. ,  YANG, Long ,  EHRLICH, Jeffrey ,  MARTINELLI, Massimo

Inventor： YANG, Long ,  EHRLICH, Jeffrey ,  MARTINELLI, Massimo

IPC: H04B10/02

CPC classification number: G02B6/356 ,  G02B6/3512 ,  G02B6/3556

Abstract: Optical switches can include collimator elements that accommodate two or more optical ports. This increases the number of ports the switch can accommodate without having to increase the size of other optical components within the switch. Separate deflectors can be used to accommodate optical signals from two different groups of ports. In some embodiments cross-coupling of signals between the two groups can be accomplished through use of re-direction optics.

Abstract translation: 光开关可以包括容纳两个或更多光端口的准直元件。 这增加了开关可以适应的端口数量，而不必增加开关内的其他光学部件的尺寸。 分离的偏转器可用于适应来自两个不同端口组的光信号。 在一些实施例中，两组之间的信号交叉耦合可以通过使用重新定向的光学器件实现。

公开(公告)号：WO2006110297A2

公开(公告)日：2006-10-19

申请号：PCT/US2006010875

申请日：2006-03-24

Applicant: CAPELLA PHOTONICS INC ,  DAVIS JOSEPH E ,  GARRETT MARK H ,  TREMAINE BRIAN ,  DARLING MICHAEL

Inventor： DAVIS JOSEPH E ,  GARRETT MARK H ,  TREMAINE BRIAN ,  DARLING MICHAEL

IPC: G02B6/26

CPC classification number: G02B6/356 ,  G02B6/2706 ,  G02B6/29311 ,  G02B6/29313 ,  G02B6/29383 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3588 ,  G02B6/3594

Abstract: A wavelength selective switch architecture for ROADMs for switching the spectral channels of a multi-channel, multi-wavelength optical signal between input and output ports employs a biaxial MEMS port mirror array for optimal coupling efficiency and ITU grid alignment, an anamorphic beam expander for expanding input optical signals to create an elongated beam profile, a diffraction grating for spatially separating the spectral channels, an anamorphic focusing lens system, an array of biaxial elongated channel MEMS micromirrors, a built-in Optical Channel Monitor, and an electronic feedback control system. The bi-axial channel micromirrors are rotatable about one axis to switch spectral channels between ports, and are rotatable about an orthogonal axis to vary the coupling of the spectral channel to an output port and control attenuation of the spectral signal for complete blocking or for a predetermined power level. The architecture affords hitless switching, near notchless operation, ITU channel alignment, high passband, stability over a broad temperature range, and minimum insertion loss through the optimal optical coupling efficiency enabled by the feedback control system.

Abstract translation: 用于ROADM的波长选择开关架构，用于在输入和输出端口之间切换多通道多波长光信号的频谱通道采用双轴MEMS端口镜阵列，实现最佳耦合效率和ITU网格对齐，用于扩展的变形光束扩展器 输入光信号以产生细长的光束轮廓，用于空间分离光谱通道的衍射光栅，变形聚焦透镜系统，双轴细长通道MEMS微镜阵列，内置光通道监视器和电子反馈控制系统。 双轴通道微镜可以围绕一个轴线旋转以在端口之间切换频谱通道，并且可绕正交轴线旋转，以改变频谱通道与输出端口的耦合，并控制光谱信号的衰减以进行完全阻塞或针对 预定功率水平。 该架构通过反馈控制系统实现的最佳光耦合效率，提供无缝切换，接近无缺陷操作，ITU通道对准，高通带，宽温度范围内的稳定性和最小插入损耗。

公开(公告)号：WO2003102631A3

公开(公告)日：2003-12-11

申请号：PCT/US2003/016278

申请日：2003-05-21

Applicant: CAPELLA PHOTONICS, INC.

Inventor： VAN DRIEENHUIZEN, Bert, P. ,  WILDE, Jeffrey, P. ,  KUAN, Nelson

IPC: G02B7/182

Abstract: A MEMS apparatus (100) comprises a bulk element (110), first and second hinges (121, 122), and a support (130). The bulk element (110) has a top and a bottom surface (112, 111), and the hinges are disposed below the top surface (112).

公开(公告)号：WO2003058183A1

公开(公告)日：2003-07-17

申请号：PCT/US2002/039137

申请日：2002-12-09

Applicant: CAPELLA PHOTONICS, INC.

Inventor： POLYNKIN, Pavel ,  WILDE, Jeffrey, P. ,  GARRETT, Mark, H.

IPC: G01J3/32

CPC classification number: H04J14/02 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/32 ,  G02B6/2706 ,  G02B6/2793 ,  G02B6/2931 ,  G02B6/29311 ,  G02B6/29397 ,  G02B6/4249 ,  G02B6/425 ,  H04J14/08

Abstract: A method and apparatus for optical spectral power monitoring using a time-division-multiplexed detection scheme. The apparatus uses a wavelength-dispersing means (120) such as a diffraction grating to separate an optical signal into multiple spectral channels, and an array of beam-manipulating elements (140) positioned to correspond with the spectral channels. The beam-manipulating elements are individually controllable so as to direct the spectral channels into an optical detector (150) in a time-division-multiplexed sequence. The apparatus may further employ a polarization diversity scheme for polarization-insensitive operation. This enhances the spectral resolution of the apparatus while providing improved accuracy in spectral power detection. Spectral power monitors constructed according to the present disclosure are well-suited for WDM optical networking applications.

Abstract translation: 一种使用时分复用检测方案进行光谱功率监测的方法和装置。 该装置使用诸如衍射光栅的波长分散装置（120）将光信号分离成多个光谱通道，以及定位成对应于光谱通道的光束操纵元件阵列（140）。 光束操纵元件是可单独控制的，以便以时分复用顺序将光谱通道引导到光学检测器（150）中。 该装置还可以采用极化分集方案来进行极化不敏感的操作。 这提高了设备​​的光谱分辨率，同时提供了光谱功率检测的改进的精度。 根据本公开构造的光谱功率监视器非常适合于WDM光网络应用。

公开(公告)号：WO2003025630A2

公开(公告)日：2003-03-27

申请号：PCT/US2002/030013

申请日：2002-09-19

Applicant: CAPELLA PHOTONICS, INC.

Inventor： WILDE, Jeffrey, P. ,  POLYNKIN, Pavel ,  TIMMONS, Michael, J. ,  GARRETT, Mark, H.

IPC: G02B

CPC classification number: G01J3/447 ,  G01J3/0224 ,  G01J3/2803 ,  G01J2003/2866

Abstract: This invention provides a novel method and apparatus which use a wavelength-dispersing means such as a diffraction grating to spatially separate a multi-wavelength optical signal along with a reference signal by wavelength into multiple spectral channels and a reference spectral component in a spectral array with a predetermined relative alignment. By aligning the reference spectral component at a predetermined location, the spectral channels simultaneously impinge onto designated locations, e.g., on an array of beam-receiving elements positioned in accordance with the spectral array. The reference spectral component may be further maintained at the predetermined location by way of servo-control, thereby ensuring that the spectral channels stay aligned at the designated locations. The present invention can be used to construct a new line of servo-based optical systems, including spectral power monitors and optical multiplexers/demultiplexers, for WDM optical networking applications.

Abstract translation: 本发明提供了一种新颖的方法和装置，其使用诸如衍射光栅的波长分散装置将多波长光信号与参考信号一起通过波长空间分离成多个光谱通道和光谱阵列中的参考光谱分量， 预定的相对对准。 通过在预定位置对准参考光谱分量，光谱通道同时撞击到指定位置，例如在根据光谱阵列定位的波束接收元件的阵列上。 参考频谱分量可以通过伺服控制进一步保持在预定位置，从而确保频谱信道在指定位置保持对准。 本发明可用于构建用于WDM光网络应用的基于伺服的光学系统的新系列，包括光功率监视器和光复用器/解复用器。

公开(公告)号：WO2011163091A1

公开(公告)日：2011-12-29

申请号：PCT/US2011/040974

申请日：2011-06-17

Applicant: CAPELLA PHOTONICS, INC. ,  YANG, Long ,  GARRETT, Mark. H ,  EHRLICH, Jeffrey E.

Inventor： YANG, Long ,  GARRETT, Mark. H ,  EHRLICH, Jeffrey E.

IPC: G02B6/26

CPC classification number: G02B6/3546 ,  G02B6/3518 ,  G02B6/356 ,  G02B6/359

Abstract: An optical apparatus can include an optical port array having an MxN array of fiber collimator ports. The array of ports is configured such that there is a gap within each column of ports located between two rows of ports. The gap is wide enough to permit a hitless beam switching trajectory to pass between the two rows of ports from one side of the array of ports to an opposite side.

Abstract translation: 光学装置可以包括具有光纤准直器端口的M×N阵列的光端口阵列。 端口阵列被配置为使得位于两行端口之间的端口的每列内存在间隙。 间隙足够宽以允许无中断束切换轨迹在两排端口之间从端口阵列的一侧到另一侧通过。

公开(公告)号：WO2007018758A3

公开(公告)日：2007-02-15

申请号：PCT/US2006/024075

申请日：2006-06-21

Applicant: CAPELLA PHOTONICS, INC. ,  TREMAINE, Brian, P.

Inventor： TREMAINE, Brian, P.

IPC: G02B6/42

Abstract: Methods for adjusting dither amplitude for MEMS mirrors in optical switches and optical switches employing such a method are disclosed. A dither amplitude of one or more MEMS mirrors may be adjusted in an optical switch having an input port, and an array of one or more MEMS mirrors that can be selectively optically coupled to one or more of optical input/output (I/O) ports. Digital-to-analog (DAC) settings for positioning mirrors are used to determine a dither amplitude for one of the MEMS mirrors positioned to couple optical signals to an output port at a position x. The servo control assembly includes memory containing digital-to-analog converter (DAC) settings for positioning each mirror in an open control loop as a function of a port position x. The servo control assembly is programmed to adjust dither amplitude of one or more of the MEMS mirrors using the stored DAC settings.