公开(公告)号：USRE39934E1

公开(公告)日：2007-12-04

申请号：US10324028

申请日：2002-12-20

申请人： John O. Smiley ,  Robert Laflamme

发明人： John O. Smiley ,  Robert Laflamme

IPC分类号： G02B6/00

CPC分类号： G02B6/353 ,  G02B6/266 ,  G02B6/3594

摘要： An optical attenuator for attenuating a collimated beam of light propagating along an optical path while preserving the composition of polarization of the collimated beam of light is disclosed. The optical attenuator comprises a beam attenuator for attenuating a portion of the collimated beam of light when a portion of the beam attenuator is disposed within the optical path. The beam attenuator has a cross section along a plane perpendicular to the direction of propagation of the collimated beam of light of the portion of the attenuator in the shape of a wedge. The attenuation is varied using a controller for moving the beam attenuator in order to vary a size of the portion of the wedge within the optical path.

摘要翻译： 公开了一种用于衰减沿着光路传播的准直光束的光衰减器，同时保持准直光束的偏振的组成。 光衰减器包括光束衰减器，用于当光束衰减器的一部分设置在光路内时，衰减准直光束的一部分。 光束衰减器具有沿与垂直于楔形的衰减器部分的准直光束的传播方向垂直的平面的横截面。 使用用于移动光束衰减器的控制器来改变衰减，以便改变光路内楔形部分的尺寸。

公开(公告)号：US6167185A

公开(公告)日：2000-12-26

申请号：US198607

申请日：1998-11-24

申请人： John O. Smiley ,  Robert Laflamme

发明人： John O. Smiley ,  Robert Laflamme

IPC分类号： G02B6/26 ,  G02B6/35 ,  G02B6/00

CPC分类号： G02B6/353 ,  G02B6/266 ,  G02B6/3594

摘要： An optical attenuator for attenuating a collimated beam of light propagating along an optical path while preserving the composition of polarization of the collimated beam of light is disclosed. The optical attenuator comprises a beam attenuator for attenuating a portion of the collimated beam of light when a portion of the beam attenuator is disposed within the optical path. The beam attenuator has a cross section along a plane perpendicular to the direction of propagation of the collimated beam of light of the portion of the attenuator in the shape of a wedge. The attenuation is varied using a controller for moving the beam attenuator in order to vary a size of the portion of the wedge within the optical path.

摘要翻译： 公开了一种用于衰减沿着光路传播的准直光束的光衰减器，同时保持准直光束的偏振的组成。 光衰减器包括光束衰减器，用于当光束衰减器的一部分设置在光路内时，衰减准直光束的一部分。 光束衰减器具有沿与垂直于楔形的衰减器部分的准直光束的传播方向垂直的平面的横截面。 使用用于移动光束衰减器的控制器来改变衰减，以便改变光路内楔形部分的尺寸。

公开(公告)号：US5506731A

公开(公告)日：1996-04-09

申请号：US349191

申请日：1994-12-05

申请人： John O. Smiley

发明人： John O. Smiley

IPC分类号： G02B7/00 ,  G02B7/02 ,  G02B15/14

CPC分类号： G02B7/005 ,  G02B26/008 ,  G02B26/023 ,  G02B7/006

摘要： A device is provided for controllably moving an optical element such as an attenuator, into one of a plurality of positions. The device includes a rotatable, cylindrical member having a face cam that is an endless cammed surface for supporting and moving a cam follower. As the cammed surface is rotated, the cam follower resting upon it moves the optical element in a controlled manner. A gearing means in the form of a toothless planetary gear box is coupled to the cylindrical member and provides fine control over the range of movement of the device.

摘要翻译： 提供了用于将诸如衰减器的光学元件可控地移动到多个位置中的一个位置的装置。 该装置包括可旋转的圆柱形构件，其具有作为用于支撑和移动凸轮从动件的环形凸轮表面的面凸轮。 当凸轮表面旋转时，靠在其上的凸轮从动件以受控的方式移动光学元件。 无齿行星齿轮箱形式的传动装置联接到圆柱形部件上，并提供对装置运动范围的精细控制。

公开(公告)号：US5629993A

公开(公告)日：1997-05-13

申请号：US520702

申请日：1995-08-29

申请人： John O. Smiley

发明人： John O. Smiley

IPC分类号： G02B6/35 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/3504 ,  G02B6/3536 ,  G02B6/3558 ,  G02B6/358

摘要： An optical switch has a stepping motor with a fiber faceplate on which are mounted end portions of output optical fibers terminating in GRIN lenses. The end portions are arranged along a pitch circle. The faceplate is spaced from the stepping motor and the diameter of the pitch circle is smaller than the diameter of the stepping motor, the output fibers diverging from the faceplate towards the motor and beyond in a space-saving arrangement. The stepping motor drives a movable arm with attached end portion of an input optical fiber, also with a GRIN lens, into one of a plurality switching positions. The connection between the fibers and the lenses and also the relative axial arrangement of the paired lenses in the switching positions is offset to reduce or minimize the reflection of light transmitted from the input fiber to the output fiber, back to the input fiber.

摘要翻译： 光开关具有带有光纤面板的步进电机，其上安装有端接在GRIN透镜中的输出光纤的端部。 端部沿着节圆排列。 面板与步进电机间隔开，节圆的直径小于步进电机的直径，输出光纤以节省空间的方式从面板向电机发散。 步进电机将具有GRIN透镜的输入光纤的附接端部的可动臂驱动到多个开关位置之一。 光纤和透镜之间的连接以及成对的透镜在切换位置中的相对轴向布置偏移以减少或最小化从输入光纤传输到输出光纤的光的反射回到输入光纤。

公开(公告)号：US5440117A

公开(公告)日：1995-08-08

申请号：US183857

申请日：1994-01-21

申请人： Carey M. Garrett ,  John O. Smiley

发明人： Carey M. Garrett ,  John O. Smiley

IPC分类号： G01J1/04 ,  G02F1/01

CPC分类号： G01J1/04 ,  G01J1/0429

摘要： A polarization-independent optical detection apparatus for measuring light output from optical fibers comprises an optical detector having an input port for receiving input light by way of an optical path and an output for a corresponding detection signal. A polarization-transformation element is rotatably mounted in the optical path so that the input light passes through the element to reach the input port. A drive motor rotates the polarization-transformation element in a plane extending transversely of the optical path. The polarization-transforming element is selected to transform the polarization state of the input light reaching the detector, as the element spins, so that, for any given input polarization state, the time averaged electrical signal from the detector is approximately the average electrical signal from the detector over all input polarization states.

摘要翻译： 用于测量从光纤输出的光的偏振无关光学检测装置包括具有用于通过光路接收输入光的输入端口和用于相应检测信号的输出的光学检测器。 偏振变换元件可旋转地安装在光路中，使得输入光通过元件到达输入端口。 驱动电机使偏振变换元件沿横向于光路延伸的平面旋转。 选择偏振变换元件以在元件旋转时变换到达检测器的输入光的偏振状态，使得对于任何给定的输入偏振状态，来自检测器的时间平均电信号近似为来自 所有输入极化状态下的检测器。