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公开(公告)号：CA2401563A1
公开(公告)日：2001-09-27
申请号：CA2401563
申请日：2001-03-16
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , HEANUE JOHN F , SCHUMAN MARC , TREMAINE BRIAN P , NEUKERMANS ARMAND P
Abstract: One aspect is a method for controllably attenuating the beam of light (108) coupled between incoming and outgoing optical fibers (106) by misaligning mirror surfaces (116a, 116b) included of an optical switching module (100). Misalignment of the mirror surfaces (116a and 116b) causes only a portion of the beam of light (108) propagating along the incoming optical fiber (106), which is less than when the light beam deflectors' mirror surfaces (116) are precisely aligned, to propagate along the outgoing optical fiber (108). Thus , the optical switching module (100) controllably attenuates the beam of light (108) coupled between the incoming and the outgoing optical fibers (106). Another aspect is a variable-optical-attenuator ("VOA") (212) that includes an optically reflective membrane (222) upon which the beam of light (108) impinges. Application of an electrostatic field between an adjacent electrod e (228) and the membrane (222) deforms the membrane (222) thereby attenuating an impinging beam of light (108).
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公开(公告)号：AU6098601A
公开(公告)日：2001-08-27
申请号：AU6098601
申请日：2001-02-16
Applicant: XROS INC NORTEL NETWORKS
Inventor： SLATER TIMOTHY G , NEUKERMANS ARMAND P , BAJIKAR SATEESH S , DOWNING JAMES P , SCHUMAN MARC R , CALMES SAM , ROMANSOVSKY ALEXANDER B , GREEN JOHN
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公开(公告)号：AU4526401A
公开(公告)日：2001-07-31
申请号：AU4526401
申请日：2001-01-18
Applicant: XROS INC NORTEL NETWORKS
Inventor： FOSTER JACK D , ROMANOVSKY ALEXANDER B
Abstract: A mechanism for reducing radial offset in a collimnated optical beam associated with an angled end fiber and minimizing an angular offset caused by collimator lens centration errors is presented. An angled end fiber is oriented in a supporting collimator so that the angled surface of the fiber is parallel to the collimator axis, thereby compensating for the radial offset. The angled end fiber is again so oriented after the angular-offset producing collimator lens rotation (used to determine the optical center of the lens) and the collimator lens is moved in a direction parallel to the collimator axis to provide a desired output focal position for the lens.
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公开(公告)号：CA2389735A1
公开(公告)日：2001-05-10
申请号：CA2389735
申请日：2000-11-02
Applicant: XROS INC
Inventor： TABASKA STEVEN T , RAMASWAMI RAJIV , WARD ROBERT R
Abstract: In general, an optical cross-connect switching system comprising a switch subsystem, an input/output (I/O) subsystem including a plurality of removabl e, I/O port modules, and a switch control subsystem featuring servo modules. These units collectively operate to provide optical data paths for routing o f light signals without conversion from optical to electrical domains and back to optical. Also, the optical cross-connect switching system is scalable because the I/O port modules, servo modules and even features of the switch subsystem may be removed without disruption in system operation.
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25.发明专利
公开(公告)号：CA2389527A1
公开(公告)日：2001-05-10
申请号：CA2389527
申请日：2000-11-02
Applicant: XROS INC
Inventor： WARD ROBERT R , RAMASWAMI RAJIV
Abstract: Methods, apparatus and systems for regenerating, monitoring and bridging optical signals through an optical cross-connect switch to provide increased reliability. A self testing method, apparatus and system for an optical cros s- connect switch. An optical-to-electrical-to-optical converter (O/E/O) is provided in an optical cross-connect switch to provide optical-electrical- optical conversion. I/O port cards having an optical-to-electrical-to-optica l converter are referred to as smart port cards while I/O port cards without a n optical-to-electrical-to-optical converter are referred to as passive port cards. Test port/monitor cards are also provided for testing optical cross- connect switches. Methods, apparatus and systems for performing bridging, te st access, and supporting redundant optical switch fabrics are also disclosed.
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Patent Agency Ranking
公开(公告)号：WO0161400A9
公开(公告)日：2002-10-10
申请号：PCT/US0105309
申请日：2001-02-16
Applicant: XROS INC NORTEL NETWORKS , SLATER TIMOTHY G , NEUKERMANS ARMAND P , BAJIKAR SATEESH S , DOWNING JAMES P , SCHUMAN MARC R , CALMES SAM , ROMANSOVSKY ALEXANDER B , GREEN JOHN
Inventor： SLATER TIMOTHY G , NEUKERMANS ARMAND P , BAJIKAR SATEESH S , DOWNING JAMES P , SCHUMAN MARC R , CALMES SAM , ROMANSOVSKY ALEXANDER B , GREEN JOHN
CPC classification number: G02B26/085 , G02B26/0841
Abstract: A micro-mirror strip assembly having a plurality of two-dimensional micro-mirror structures with improved deflection and other characteristics is presented. In the micro-mirror structures, electrodes for electrostatic deflection are disposed on conical or quasi-conical entities that are machined, attached or molded into a substrate. The electrodes are quartered approximately parallel to or offset by 45 degrees from rotational axes to form quadrants. Torsion sensors are provided along the axes of rotation to control deflection of the quadrant deflection electrodes.
Abstract translation: 提出了具有多个具有改进的偏转和其它特性的二维微镜结构的微镜条组件。 在微镜结构中，用于静电偏转的电极设置在被加工，附接或模制成基底的锥形或准圆锥形实体上。 这些电极与旋转轴大致平行或偏移45度，形成象限。 扭转传感器沿旋转轴提供，以控制象限偏转电极的偏转。
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27.发明申请AN OPTICAL CROSS-CONNECT SWITCHING SYSTEM WITH BRIDGING, TEST ACCESS AND REDUNDANCY 审中-公开具有桥接，测试访问和冗余的光学交叉连接切换系统
公开(公告)号：WO0133897A9
公开(公告)日：2002-05-16
申请号：PCT/US0030494
申请日：2000-11-02
Applicant: XROS INC
Inventor： RAMASWAMI RAJIV , CLARK STEVEN , WARD ROBERT R
CPC classification number: H04Q11/0062 , G02B6/43 , H04J14/0293 , H04J14/0297 , H04Q11/0005 , H04Q2011/0015 , H04Q2011/0024 , H04Q2011/0026 , H04Q2011/0041 , H04Q2011/0043 , H04Q2011/0049 , H04Q2011/005 , H04Q2011/0073 , H04Q2011/0081 , H04Q2011/0083
Abstract: In one embodiment, a scalable cross-connect switching system and its corresponding method perform a bridging operation by splitting the incoming light signal into at least a first bridged light signal and a second bridged light signal. The first bridged light signal has a power level equal to or substantially greater than a power level of the second bridged light signal. The disproportionate power levels provide low-loss bridging. Light signals based on these bridged light signals are routed through multiple switch fabrics which provide redundancy in case of failure by switching within the switch fabric. To detect failures, a test access port is configured for monitoring multiple optical paths.
Abstract translation: 在一个实施例中，可扩展交叉连接交换系统及其对应方法通过将入射光信号分成至少第一桥接光信号和第二桥接光信号来执行桥接操作。 第一桥接光信号具有等于或基本上大于第二桥接光信号的功率电平的功率电平。 不相称的权力水平提供低损失桥梁。 基于这些桥接光信号的光信号通过多个交换结构进行路由，这些交换结构在交换结构内切换时在故障的情况下提供冗余。 为了检测到故障，测试接入端口被配置为监视多个光路。
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公开(公告)号：WO0153860A3
公开(公告)日：2002-02-21
申请号：PCT/US0101756
申请日：2001-01-18
Applicant: XROS INC NORTEL NETWORKS , FOSTER JACK D , ROMANOVSKY ALEXANDER B
Inventor： FOSTER JACK D , ROMANOVSKY ALEXANDER B
CPC classification number: G02B6/3582 , G02B6/262 , G02B6/32 , G02B6/3512 , G02B6/4249 , G02B26/085
Abstract: A mechanism for reducing radial offset in a collimated optical beam associated with an angled end fiber (48) and minimizing an angular offset (52) caused by collimator lens (40) centration errors is presented. An angled end fiber is oriented in a supporting collimator so that angled surface of the fiber is parallel to the collimator axis, thereby compensating for the radial offset. The angled end fiber is again so oriented after the angular-offset producing collimator lens rotation (used to determine the optical center of the lens) and the collimator lens is moved in a direction parallel to the collimator axis to provide a desired output focal position for the lens.
Abstract translation: 提出了用于减小与成角度的端部光纤（48）相关联的准直光束中的径向偏移并且使由准直透镜（40）中心误差引起的角度偏移（52）最小化的机构。 成角度的端部光纤定向在支撑准直器中，使得光纤的成角度的表面平行于准直器轴线，从而补偿径向偏移。 角度端部光纤在角偏移产生准直透镜旋转（用于确定透镜的光学中心）之后再次取向，并且准直透镜在平行于准直器轴线的方向上移动以提供期望的输出焦点位置 镜头。
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公开(公告)号：DE69627376T2
公开(公告)日：2003-10-23
申请号：DE69627376
申请日：1996-12-24
Applicant: XROS INC
Inventor： NEUKERMANS P
Abstract: A compact medium scanner (100) scans a surface (132) of a medium (134) with a beam of light (106). A medium transport mechanism (202, 206) advances the surface along a medium transport path through a scanning station. A light source (104) produces a collimated beam of light (106) that impinges upon a mirror plate (112) of a micromachined torsional scanner (108). A pair of coaxially aligned torsion bars (304) support the mirror plate (112) within the torsional scanner (108). A mirror-surface drive means (306, 312) rotates the mirror plate (112) about the torsion bars (304). A single reciprocation of the mirror plate (112) by the drive means (306, 312) deflects the beam of light (106) over a fan-shaped region having a virtually fixed vertex (128) on the mirror plate (112). Scanner optics (116, 122) direct the fan-shaped region beam of light (106) onto the surface (132) of the medium (134) then present in the scanning station to thereby scan across the medium (134) with the beam of light (106).
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公开(公告)号：DE69627376D1
公开(公告)日：2003-05-15
申请号：DE69627376
申请日：1996-12-24
Applicant: XROS INC
Inventor： NEUKERMANS P
Abstract: A compact medium scanner (100) scans a surface (132) of a medium (134) with a beam of light (106). A medium transport mechanism (202, 206) advances the surface along a medium transport path through a scanning station. A light source (104) produces a collimated beam of light (106) that impinges upon a mirror plate (112) of a micromachined torsional scanner (108). A pair of coaxially aligned torsion bars (304) support the mirror plate (112) within the torsional scanner (108). A mirror-surface drive means (306, 312) rotates the mirror plate (112) about the torsion bars (304). A single reciprocation of the mirror plate (112) by the drive means (306, 312) deflects the beam of light (106) over a fan-shaped region having a virtually fixed vertex (128) on the mirror plate (112). Scanner optics (116, 122) direct the fan-shaped region beam of light (106) onto the surface (132) of the medium (134) then present in the scanning station to thereby scan across the medium (134) with the beam of light (106).
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