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    Optical switch having combined input/output fiber array
    1.
    发明授权
    Optical switch having combined input/output fiber array 有权
    具有组合输入/输出光纤阵列的光开关

    公开(公告)号：US06975788B2

    公开(公告)日：2005-12-13

    申请号：US10314768

    申请日：2002-12-09

    申请人： Nagesh R. Basavanhally ,  Mark A. Paczkowski ,  Hong Tang ,  John D. Weld

    发明人： Nagesh R. Basavanhally ,  Mark A. Paczkowski ,  Hong Tang ,  John D. Weld

    IPC分类号： G02B6/35 ,  G02B6/32

    CPC分类号： G02B6/3582 ,  G02B6/3512 ,  G02B6/3558

    摘要： An optical switch has an array of fibers, an optional lens, and a mirror with two-dimensional tilt adjustment. Light from the array passes through the lens, is reflected by the mirror, and passes again through the lens back towards the array. The input/output fibers are arranged in a two-dimensional pattern designed to avoid undesirable crosstalk between fibers. The pattern may include a plurality of fibers positioned around a central fiber in a circular arrangement. For a 1×8 or 8×1 switch, nine fibers are preferably positioned in a circle around the central fiber, thereby providing geometry that substantially avoids undesirable crosstalk between fibers in the array. In another implementation, the fiber array is implemented using a tapered ferrule housing a central fiber, surrounded by an intermediate layer of six fibers, surrounded by an outer layer of twelve fibers.

    摘要翻译： 光学开关具有纤维阵列，可选镜头和具有二维倾斜调节的镜子。 来自阵列的光通过透镜，被镜子反射，并再次通过透镜返回阵列。 输入/输出光纤布置成二维图案，设计用于避免纤维之间不期望的串扰。 该图案可以包括以圆形布置围绕中心纤维定位的多根纤维。 对于1x8或8x1开关，优选地将九个光纤定位在围绕中心光纤的圆周中，从而提供基本避免阵列中的纤维之间不期望的串扰的几何形状。 在另一实施方案中，纤维阵列使用容纳中心纤维的锥形套圈来实现，所述中心纤维由六根纤维的中间层包围，被十二根纤维的外层包围。

    Coupler assembly for an optical backplane system
    2.
    发明授权
    Coupler assembly for an optical backplane system 失效
    用于光背板系统的耦合器组件

    公开(公告)号：US07062132B2

    公开(公告)日：2006-06-13

    申请号：US10743922

    申请日：2003-12-23

    申请人： Nagesh R. Basavanhally ,  David A. Ramsey ,  Hong Tang

    发明人： Nagesh R. Basavanhally ,  David A. Ramsey ,  Hong Tang

    IPC分类号： G02B6/26 ,  G02B6/42

    CPC分类号： G02B6/4292 ,  G02B6/3502 ,  G02B6/3512 ,  G02B6/3598 ,  G02B6/3897 ,  G02B6/43

    摘要： A coupler assembly for an optical backplane system having a backplane and two or more circuit packs connected to that backplane. Each circuit pack has an optical transceiver and the backplane has an optical pipe (e.g., an array of waveguides) adapted to guide optical signals between the transceivers of different circuit packs. A coupler assembly is provided for each transceiver to couple light between that transceiver and the optical pipe. Advantageously, the coupler assembly has a movable optical element that can accommodate possible misalignment between the backplane and the circuit pack. In one embodiment, the movable optical element is an array of MEMS mirrors, each mirror adapted to direct light between an optical transmitter or receiver and the corresponding waveguide of the optical pipe. In another embodiment, the movable optical element is an array of flexible optical fibers, each coupled between an optical transmitter or receiver and the corresponding waveguide of the optical pipe and having an angled surface adapted to couple light between said fiber and waveguide.

    摘要翻译： 一种用于光背板系统的耦合器组件，其具有连接到该背板的背板和两个或更多个电路板。 每个电路板具有光收发器，并且背板具有适于引导不同电路板的收发器之间的光信号的光管（例如，波导阵列）。 为每个收发器提供耦合器组件以在该收发器和光学管之间耦合光。 有利地，耦合器组件具有可容纳背板和电路板之间可能的未对准的可移动光学元件。 在一个实施例中，可移动光学元件是MEMS反射镜的阵列，每个反射镜适于在光学发射器或接收器与光学管道的相应波导管之间引导光。 在另一个实施例中，可移动光学元件是柔性光纤阵列，每个光纤连接在光发射器或接收器与光学管道的对应波导之间，并且具有适于在所述光纤和波导之间耦合光的倾斜表面。

    Optical grating mount
    3.
    发明授权
    Optical grating mount 失效
    光栅安装

    公开(公告)号：US06757113B1

    公开(公告)日：2004-06-29

    申请号：US10391309

    申请日：2003-03-18

    申请人： Nagesh R. Basavanhally ,  David A. Ramsey ,  Hong Tang

    发明人： Nagesh R. Basavanhally ,  David A. Ramsey ,  Hong Tang

    IPC分类号： G02B702

    CPC分类号： G02B6/2931 ,  G02B6/29314 ,  G02B6/2938 ,  G02B7/026

    摘要： Apparatus and method for allowing fine adjustment of a diffraction grating within an optical wavelength-division multiplexing (WDM) device and for maintaining the grating in near-littrow alignment (i.e., to within an accuracy of +/−0.003 degrees) over the device's operating temperature range. Precise alignment is maintained by use of a 0.3 PPM/° C. “super invar” material in a wedge-shaped grating mount to eliminate an angular shift of the grating over typical operating temperatures. The wedge-shaped grating mount and thereby the orientation of the surface of the grating are adjusted precisely and maintained in position over the operating temperatures via a dual flexure structure wherein four precision adjustment screws with jeweled contact tips are tightened to achieve the desired orientation and stiffen the structure and then locked via locking nuts to prevent slippage.

    摘要翻译： 用于允许在光学波分复用（WDM）器件内精细调节衍射光栅的装置和方法，并且用于将光栅保持在近距离对准（即，在+/- 0.003度的精度内），超过器件的操作 温度范围。 通过在楔形光栅安装中使用0.3PPM /℃的“超级”材料来保持精确对准，以消除光栅在典型工作温度下的角位移。 楔形光栅安装件以及由此光栅表面的方向被精确地调整并通过双弯曲结构保持在操作温度上的位置，其中四个带有宝石接触尖端的精密调节螺钉被紧固以实现期望的取向和加强 结构，然后通过锁紧螺母锁定，以防止滑动。

    Alignment and assembly method
    5.
    发明授权
    Alignment and assembly method 失效
    校准和组装方法

    公开(公告)号：US5281301A

    公开(公告)日：1994-01-25

    申请号：US878245

    申请日：1992-05-04

    申请人： Nagesh R. Basavanhally

    发明人： Nagesh R. Basavanhally

    IPC分类号： G02B6/40 ,  B81B1/00 ,  B81C3/00 ,  G02B6/32 ,  G02B6/36 ,  G02B6/38 ,  G02B6/44 ,  B44C1/22

    CPC分类号： G02B6/362 ,  G02B6/32 ,  G02B6/3834 ,  G02B6/3839 ,  G02B6/3885 ,  G02B6/3887 ,  G02B6/4439 ,  G02B6/3644 ,  G02B6/3652 ,  G02B6/3672 ,  G02B6/3692 ,  G02B6/3854

    摘要： A first array of microlenses (16) on a lens substrate (15) is accurately aligned with a lens holder (20) by making a second array of microlenses (17) simultaneously with the first array. The second array of microlenses is arranged around the periphery of the lens substrate and is made solely for alignment purposes, rather than for focusing light. An array of detents (21, FIG. 2) is made in one surface of the lens holder such that, when the lens holder is abutted against the lens substrate, each microlens (17) of the second array can extend into one of the detents of the lens holder member, thereby to align the first array of microlenses with the lens holder member. The lens holder member has an opening (22) to permit light to be transmitted to or from the first array of microlenses (16). A pair of alignment pins (24) aligns the lens holder member with an array of optical fibers (12).

    摘要翻译： 透镜基板（15）上的第一阵列的微透镜（16）通过与第一阵列同时地形成第二阵列的微透镜（17）而与透镜保持器（20）精确对准。 第二微透镜阵列布置在透镜基底的周边周围，并且仅用于对准目的，而不是用于聚焦光。 在透镜保持器的一个表面上形成一系列制动器（21，图2），使得当透镜保持器抵靠透镜基板时，第二阵列的每个微透镜（17）可以延伸到一个掣子 从而使第一阵列的微透镜与透镜保持器构件对准。 透镜保持器构件具有允许光从第一阵列的微透镜（16）传出或从第一阵列的微透镜（16）传输的开口（22）。 一对对准销（24）将透镜架构件与光纤阵列（12）对准。

    Optical laser connector
    6.
    发明授权
    Optical laser connector 失效
    光学激光连接器

    公开(公告)号：US5212754A

    公开(公告)日：1993-05-18

    申请号：US815296

    申请日：1991-12-27

    申请人： Nagesh R. Basavanhally ,  D. Bruce Buchholz ,  Anthony F. J. Levi ,  Ronald A. Nordin

    发明人： Nagesh R. Basavanhally ,  D. Bruce Buchholz ,  Anthony F. J. Levi ,  Ronald A. Nordin

    IPC分类号： G02B6/38 ,  G02B6/42 ,  H01S5/022 ,  H01S5/40

    CPC分类号： G02B6/4249 ,  G02B6/3885 ,  H01S5/02276 ,  H01S5/02284 ,  H01S5/4031

    摘要： Connector apparatus for coupling an optical fiber cable with laser devices. The apparatus comprises a receptacle terminating aligned fibers of the optical cable in a planar surface perpendicular to a central axis of the receptacle. A plug mounts a plurality of laser devices each having an electrical terminal for connecting a laser device to an external source and an optical terminal aligned in a planar surface perpendicular to a central axis of the plug with each optical terminal positioned to correspond with one of the receptacle fibers. The plug slidably engages the receptacle and is affixed thereto to position the receptacle planar surface adjacent to and aligned with the plug planar surface to optically couple each laser device with a corresponding fiber of the optical cable.

    摘要翻译： 用于将光纤电缆与激光装置连接的连接器装置。 该装置包括一个插座，该插座在垂直于插座中心轴的平面上终止光缆的对准光纤。 插头安装多个激光装置，每个激光装置具有用于将激光装置连接到外部源的电端子和与垂直于插头的中心轴线的平面垂直的光学终端，每个光学终端被定位成与 插座纤维。 插头可滑动地接合插座并且被固定到其上以将插座平面表面定位成与插头平面相邻并对准插头平面，以将每个激光装置与光缆的相应光纤光学耦合。

    Method and apparatus for controlling curvatures of microlenses and micromirrors
    7.
    发明授权
    Method and apparatus for controlling curvatures of microlenses and micromirrors 有权
    用于控制微透镜和微镜的曲率的方法和装置

    公开(公告)号：US07649670B2

    公开(公告)日：2010-01-19

    申请号：US11245761

    申请日：2005-10-07

    申请人： Nagesh R. Basavanhally ,  Dan M. Marom

    发明人： Nagesh R. Basavanhally ,  Dan M. Marom

    IPC分类号： G02B26/00

    CPC分类号： G02B3/0056 ,  G02B3/0006 ,  G02B3/14 ,  G02B26/0825

    摘要： The invention includes a method and apparatus for controlling curvatures of light directing devices. The apparatus includes a first substrate portion having formed therein a plurality of cavities, and a substantially flexible membrane disposed over the cavities for forming a respective plurality of light directing mechanisms, the light directing mechanisms disposed over the cavities. The respective curvatures of the light directing mechanisms are set using a pressure difference across each of the membrane portions disposed over the cavities. The respective curvatures of the light directing mechanisms may be controllably adjusted during operation of the light directing mechanisms.

    摘要翻译： 本发明包括一种用于控制光导装置的曲率的方法和装置。 该装置包括在其中形成有多个空腔的第一基板部分和设置在空腔上的基本上柔性的膜，用于形成相应的多个光引导机构，所述光引导机构设置在空腔上方。 光引导机构的相应曲率是通过设置在空腔上的每个膜部分之间的压力差来设定的。 光导向机构的各自的曲率可以在光导引机构的操作期间被可控地调节。