公开(公告)号：WO2002061988A3

公开(公告)日：2002-08-08

申请号：PCT/US2001/018146

申请日：2001-06-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HAMERLY, Mike,E. ,  SMITH, Robert, G. ,  SMITH, Terry, L. ,  THEISS, Silva, K. ,  WEAVER, Billy, L.

IPC: H04B10/18

Abstract: An apparatus for equalizing polarization mode dispersion in an optical signal traveling through an optical fiber. A polarization mode separator separates the optical signal into a first polarized signal and a second differently polarized signal traveling along respective first and second paths. A first variable delay generator located along the first path is adapted to selectively provide a first propagation delay to the first polarized signal. The first variable delay generator includes at least two rotating micro-mirrors and one or more fixed mirrors constructed on a surface of a substrate. The fixed mirrors include a plurality of optical paths of differing lengths adapted to optically couple with the two rotating micro-mirrors. A controller is coupled to the first variable delay generator. The controller is adapted to monitor the polarization mode dispersion in the optical signal and to position the rotating micro-mirrors to direct the first polarized signal along one of the plurality of optical paths. A beam combiner is coupled to the first and second optical paths after the first variable delay generator. The beam combiner combines the first and second signals to form an optical output signal substantially compensated for polarization mode dispersion.

公开(公告)号：WO2002088018A3

公开(公告)日：2002-11-07

申请号：PCT/US2002/003679

申请日：2002-02-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： GOETZ, Douglas, P. ,  HAMERLY, Michael, E. ,  PENDERGRASS, Daniel, B., Jr. ,  SMITH, Robert, G. ,  THEISS, Silva, K. ,  WEAVER, Billy, L.

IPC: B81B3/00

Abstract: A micrometer sized multi-directional thermal actuator capable of repeatable and rapid displacement in a substantially horizontal direction, a substantially vertical direction, and/or a combination thereof. The multi-directional thermal actuator constructed on a surface of a substrate includes three or more beams each cantilevered from one or more anchors at a first end to extend generally parallel to the surface of the substrate. A member mechanically and electrically couples the distal ends of the beams. Application of current to a circuit comprising combinations of any two or more of the beams displaces the member in one of three or more non-parallel radial directions, respectively.

公开(公告)号：WO2002088018A2

公开(公告)日：2002-11-07

申请号：PCT/US2002/003679

申请日：2002-02-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： GOETZ, Douglas, P. ,  HAMERLY, Michael, E. ,  PENDERGRASS, Daniel, B., Jr. ,  SMITH, Robert, G. ,  THEISS, Silva, K. ,  WEAVER, Billy, L.

IPC: B81B3/00

CPC classification number: B81B3/0021 ,  B81B2201/031 ,  B81B2203/0307 ,  B81B2203/051 ,  B81B2203/053 ,  H01G5/18 ,  H01G5/40 ,  H01H2061/008

Abstract: A micrometer sized multi-directional thermal actuator capable of repeatable and rapid displacement in a substantially horizontal direction, a substantially vertical direction, and/or a combination thereof. The multi-directional thermal actuator constructed on a surface of a substrate includes three or more beams each cantilevered from one or more anchors at a first end to extend generally parallel to the surface of the substrate. A member mechanically and electrically couples the distal ends of the beams. Application of current to a circuit comprising combinations of any two or more of the beams displaces the member in one of three or more non-parallel radial directions, respectively.

Abstract translation: 一种千分尺尺寸的多向热致动器，其能够在基本上水平的方向，基本上垂直的方向上重复和快速地位移，和/或其组合。 构造在基板的表面上的多向热致动器包括三个或更多个梁，每个梁在第一端处从一个或多个锚固件悬臂延伸，以大致平行于基板的表面延伸。 机械和电气耦合梁的远端的部件。 将电流施加到包括任何两个或更多个光束的组合的电路中，分别使构件在三个或更多个非平行的径向方向之一中移位。

公开(公告)号：WO2002023565A3

公开(公告)日：2002-03-21

申请号：PCT/US2001/025786

申请日：2001-08-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WEAVER, Billy, L. ,  GOETZ, Douglas, P. ,  HAGEN, Kathy, L. ,  HAMERLY, Mike, E. ,  SMITH, Robert, G. ,  THEISS, Silva, K.

IPC: B81B3/00

Abstract: A micrometer sized, single-stage, horizontal and vertical thermal actuator capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The horizontal and vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above and laterally offset from the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator exhibits horizontal and vertical displacement when current is applied to at least the hot arm.

公开(公告)号：WO2002061487A3

公开(公告)日：2002-08-08

申请号：PCT/US2001/018782

申请日：2001-06-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HAMERLY, Mike, E. ,  SMITH, Robert, G. ,  THEISS, Silva, K. ,  WEAVER, Billy, L.

IPC: G02B26/02

Abstract: A MEMS-based device to steer and manipulate beams of light traveling in free-space in an optical switch. The optical switch is based on a rotating vertical micro-mirror constructed on a surface of a substrate. At least one input optical fiber is arranged to direct at least one optical signal through free-space along a first optical path parallel to the surface of the substrate. A plurality of output optical fibers are arranged to receive the optical signal traveling through free-space along other optical paths not co-linear with the first optical path. At least one substantially vertical, rotating micro-mirror assembly is constructed on the substrate. The assembly includes a rotating micro-mirror with a vertical centerline and an axis of rotation both perpendicular to the surface, but not co-linear. The rotating micro-mirror is rotatable between a first position not in the first optical path and at least a second position redirecting the optical signal to one of the output optical fibers.

公开(公告)号：WO2002061487A2

公开(公告)日：2002-08-08

申请号：PCT/US2001/018782

申请日：2001-06-08

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HAMERLY, Mike, E. ,  SMITH, Robert, G. ,  THEISS, Silva, K. ,  WEAVER, Billy, L.

IPC: G02B26/02

CPC classification number: G02B6/3564 ,  G02B6/32 ,  G02B6/3518 ,  G02B6/3546 ,  G02B6/3548 ,  G02B6/3576 ,  G02B6/358 ,  G02B26/0866

Abstract: A MEMS-based device to steer and manipulate beams of light traveling in free-space in an optical switch. The optical switch is based on a rotating vertical micro-mirror constructed on a surface of a substrate. At least one input optical fiber is arranged to direct at least one optical signal through free-space along a first optical path parallel to the surface of the substrate. A plurality of output optical fibers are arranged to receive the optical signal traveling through free-space along other optical paths not co-linear with the first optical path. At least one substantially vertical, rotating micro-mirror assembly is constructed on the substrate. The assembly includes a rotating micro-mirror with a vertical centerline and an axis of rotation both perpendicular to the surface, but not co-linear. The rotating micro-mirror is rotatable between a first position not in the first optical path and at least a second position redirecting the optical signal to one of the output optical fibers.

Abstract translation: 一种用于控制和操纵在光学开关中在自由空间中行进的光束的基于MEMS的装置。 光学开关基于构造在基板的表面上的旋转垂直微反射镜。 至少一个输入光纤布置成沿着平行于衬底的表面的第一光路引导至少一个光信号通过自由空间。 多个输出光纤布置成接收沿着与第一光路不共线的其它光路传播自由空间的光信号。 至少一个基本上垂直的，旋转的微反射镜组件被构造在衬底上。 组件包括旋转的微反射镜，其垂直中心线和旋转轴线都垂直于表面而不是共线的。 旋转微镜可在不在第一光路中的第一位置和至少第二位置之间旋转，该第二位置将光信号重定向到输出光纤之一。

公开(公告)号：WO2002022493A3

公开(公告)日：2002-03-21

申请号：PCT/US2001/027144

申请日：2001-08-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： WEAVER, Billy, L. ,  GOETZ, Douglas, P. ,  HAGEN, Kathy, L. ,  HAMERLY, Michael, E. ,  SMITH, Robert, G. ,  THEISS, Silva, K.

IPC: B81B3/00

Abstract: A micrometer sized, single-stage, vertical thermal actuator with controlled bending capable of repeatable and rapid movement of a micrometer-sized optical device off the surface of a substrate. The vertical thermal actuator is constructed on a surface of a substrate. At least one hot arm has a first end anchored to the surface and a free end located above the surface. A cold arm has a first end anchored to the surface and a free end. The cold arm is located above the hot arm relative to the surface. The cold arm is adapted to provide controlled bending near the first end thereof. A member mechanically and electrically couples the free ends of the hot and cold arms such that the actuator bends generally at the flexure so that the member moves away from the substrate when current is applied to at least the hot arm.