公开(公告)号：WO0195009A3

公开(公告)日：2002-10-17

申请号：PCT/US0117767

申请日：2001-05-31

Applicant: CALIENT NETWORKS INC

Inventor： HUNT PETER

IPC: G02B6/35 ,  G02B26/02

CPC classification number: G02B6/3586 ,  G02B6/3518 ,  G02B6/3556 ,  G02B6/357

Abstract: An embodiment of the present invention provides for a method and a system for updating a table of mirror positions to compensate for drifts experienced by the mirrors. The drifts for at least one surrogate mirror in a first mirror are measured. The first mirror array comprises a plurality of working mirrors and surrogate mirrors. The working mirror carries working light in a working path and the surrogate mirror carries test light in a calibration path. The drifts for the working mirrors are estimated using the drifts measured from the surrogate mirrors. The mirror positions of the surrogate mirrors and the working mirrors are updated to compensate for the measured drifts and the estimated drifts respectively. The mirror positions point each mirror in the first mirror array to a plurality of target mirrors in a second mirror array.

Abstract translation: 本发明的实施例提供了一种用于更新镜子位置表以补偿由镜子经历的漂移的方法和系统。 测量第一反射镜中至少一个替代反射镜的漂移。 第一反射镜阵列包括多个工作镜和代用镜。 工作镜在工作路径上运送工作光，代理镜在校准路径中运送测试光。 使用从代理镜测量的漂移来估计工作镜的漂移。 替代镜和工作镜的镜像位置被更新，以补偿测量的漂移和估计的漂移。 反射镜位置将第一反射镜阵列中的每个反射镜指向第二反射镜阵列中的多个目标反射镜。

公开(公告)号：WO0195010A2

公开(公告)日：2001-12-13

申请号：PCT/US0117768

申请日：2001-05-31

Applicant: CALIENT NETWORKS INC

Inventor： HUNT PETER ,  KEATING ADRIAN ,  WHITE KEVIN

IPC: G02B6/35 ,  G02B26/08 ,  G02B26/02

CPC classification number: G02B6/3586 ,  G02B6/3518 ,  G02B6/3556 ,  G02B26/0841 ,  Y10S359/90

Abstract: A method of moving reflectors in an optical cross-connect switch. In one embodiment, the optical cross-connect switch identifies a reflector path avoiding possible interference with other reflectors, predicts the reflector path from precomputed tables, and moves the reflector in a straight line in target reflector plane coordinates from initial position to target position.

Abstract translation: 一种在光交叉连接开关中移动反射器的方法。 在一个实施例中，光交叉连接开关识别避免与其它反射器可能干涉的反射器路径，预测来自预计算表的反射器路径，并将反射器以目标反射器平面坐标从初始位置到目标位置的直线移动。

公开(公告)号：WO0195011A3

公开(公告)日：2002-09-19

申请号：PCT/US0117904

申请日：2001-05-31

Applicant: CALIENT NETWORKS INC

Inventor： HUNT PETER

IPC: G02B6/35 ,  H04Q11/00 ,  G02B26/02

CPC classification number: G02B6/359 ,  G02B6/3518 ,  G02B6/3556 ,  H04Q11/0005 ,  H04Q2011/0026 ,  H04Q2011/0043

Abstract: A method for ensuring path integrity in an optical switch is provided that essentially eliminates any occurrences of misconnected paths and enables new signal paths to be easily generated and existing paths to be switched. The method is suitable for use in optical switching devices that enable selective connection of optical signals received on a plurality of input fibers to respective output fibers, wherein the optical switching device includes a first array of mirrors disposed in a first mirror plane and a second array of mirrors disposed in a second mirror plane. In accord with the method, all mirrors are maintained in signal paths so that undesired light is prevented from reaching any of the output fibers. The mirror in the second mirror plane that is to be part of a new signal path is moved into its correct position for the new path, while the positions of the other mirrors are controlled such that no light is directed toward the second plane mirror or output fiber corresponding to the new signal path. A light is received on the input fiber and directed toward the mirror in the first mirror plane that is to be part of the signal path while the mirror is moved to direct light toward the second plane mirror, in a timed, controlled, motion. Proper configuration is then confirmed by observing a change in the output signal produced at the output fiber. The positions of each of the mirrors are then adjusted to optimize the signal path.

Abstract translation: 提供了一种用于确保光开关中的路径完整性的方法，其基本上消除了错误连接路径的任何发生，并且使得能够容易地生成新的信号路径并且切换现有的路径。 该方法适用于能够将接收在多个输入光纤上的光信号选择性地连接到相应输出光纤的光开关器件，其中该光开关器件包括设置在第一镜面中的第一阵列的反射镜阵列和第二阵列 的反射镜设置在第二镜面中。 根据该方法，所有反射镜都保持在信号路径中，从而防止不期望的光到达任何输出光纤。 作为新信号路径的一部分的第二镜面中的反射镜被移动到其新路径的正确位置，而其他反射镜的位置被控制，使得没有光指向第二平面镜或输出 纤维对应于新的信号路径。 光被接收在输入光纤上并被引导到第一镜面中的反射镜，该反射镜将作为信号路径的一部分，同时反射镜以定时，受控的运动被移动以将光引向第二平面镜。 然后通过观察输出光纤产生的输出信号的变化来确认正确的配置。 然后调整每个反射镜的位置以优化信号路径。

公开(公告)号：WO0195013A3

公开(公告)日：2002-08-29

申请号：PCT/US0117724

申请日：2001-05-31

Applicant: CALIENT NETWORKS INC

Inventor： HUNT PETER ,  WHITE KEVIN

IPC: G02B6/35 ,  G02B26/08 ,  G02B26/02

CPC classification number: G02B6/3564 ,  G02B6/3512 ,  G02B6/3556 ,  G02B6/357 ,  G02B6/358 ,  G02B6/3584 ,  G02B6/3588 ,  G02B26/0841

Abstract: A method for positioning a movable reflector in an optical switch. A set of optical power values are generated by measuring optical power related to optical reflections from the movable reflection for a plurality of positions of the movable reflector. A processor is used to generate a mathematical approximation of a relationship of optical power versus reflector position based on the set of optical power values. A position of the movable reflector is chosen based on a point in the mathematical approximation of the relationship of optical power versus reflector position.

Abstract translation: 一种将可移动反射器定位在光开关中的方法。 通过测量与可移动反射器的多个位置的可移动反射的光学反射相关的光学功率来生成一组光功率值。 处理器用于基于光功率值的集合来产生光功率与反射器位置的关系的数学近似。 基于光学功率与反射器位置的关系的数学近似的点来选择可移动反射器的位置。