公开(公告)号：WO0133746A3

公开(公告)日：2002-05-02

申请号：PCT/US0030407

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00

CPC classification number: H04Q11/0062 ,  G02B6/43 ,  H04J14/0293 ,  H04J14/0297 ,  H04Q11/0005 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0035 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0058 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083 ,  H04Q2011/0088

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 cross-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-optical converter are referred to as smart port cards while I/O port cards without an 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, test access, and supporting redundant optical switch fabrics are also disclosed.

Abstract translation: 通过光交叉连接开关再生，监测和桥接光信号的方法，装置和系统，以提供更高的可靠性。 一种用于光交叉连接开关的自检方法，装置和系统。 在光交叉开关中提供光 - 电 - 光转换器（O / E / O）以提供光 - 电 - 光转换。 具有光 - 电 - 光转换器的I / O端口卡被称为智能端口卡，而没有光对电转换器的I / O端口卡被称为被动端口卡。 还提供测试端口/监视器卡，用于测试光交叉连接交换机。 还公开了用于执行桥接，测试访问和支持冗余光交换结构的方法，装置和系统。

公开(公告)号：WO0139413A2

公开(公告)日：2001-05-31

申请号：PCT/US0041874

申请日：2000-11-02

Applicant: XROS INC

Inventor： RAMASWAMI RAJIV ,  WARD ROBERT R

IPC: G02B6/43 ,  H04Q11/00 ,  H04J3/00

CPC classification number: H04Q11/0062 ,  G02B6/43 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0041 ,  H04Q2011/0043 ,  H04Q2011/005 ,  H04Q2011/0073 ,  H04Q2011/0081 ,  H04Q2011/0083

Abstract: The present invention provides methods, systems, and data communication networks for providing fault protection in an optical network. In one embodiment, the present invention includes a source node having an optical cross-connect switching system that has a source port card with a splitter to split an input optical signal into two similar optical signals. The two similar optical signals contain the same information. A source optical switching device switches one of the two similar optical signals to a first destination port card and onto an adjacent node and the other one of the similar optical signals to a second destination port card and onto a different adjacent node, respectively, such that the two similar optical signals are then diversely routed through the optical network. A destination node having an optical cross-connect switching system receives the two similar optical signals via first and second source port cards, respectively. The optical cross-connect switching system of the destination node includes a destination optical switching device to switch each of the two similar optical signals to a destination port card having a selector switch. The selector switch selects one of the available two similar optical signals, such that, if one of the diversely routed similar optical signals fails to reach the destination node, due to a fault in the optical network, the other one of the similar optical signals is still available. Thus, the same information is provided to the destination port card of the destination node and 1+1 optical fault protection is provided for the optical network.

Abstract translation: 本发明提供了用于在光网络中提供故障保护的方法，系统和数据通信网络。 在一个实施例中，本发明包括具有光交叉连接交换系统的源节点，其具有具有分离器的源端口卡，以将输入光信号分成两个相似的光信号。 两个相似的光信号包含相同的信息。 源光交换设备将两个相似的光信号中的一个切换到第一目的地端口卡并将相邻的光信号中的另一个分别连接到第二目的地端口卡并转到不同的相邻节点上，使得 然后，两个相似的光信号通过光网络被不同地路由。 具有光交叉连接交换系统的目的地节点分别经由第一和第二源端口卡接收两个相似的光信号。 目的地节点的光交叉连接交换系统包括目的光交换设备，用于将两个相似光信号中的每一个切换到具有选择器开关的目的地端口卡。 选择器开关选择可用的两个相似光信号中的一个，使得如果由于光网络中的故障而导致不同路由的相似光信号之一不能到达目的地节点，则另一个相似的光信号是 仍然可用。 因此，向目的地节点的目的地端口卡提供相同的信息，并为光网络提供1 + 1光学故障保护。

公开(公告)号：EP1281095A4

公开(公告)日：2005-07-06

申请号：EP01920523

申请日：2001-03-16

Applicant: XROS INC

Inventor： NEUKERMANS ARMAND P ,  RAMASWAMI RAJIV ,  HEANUE JOHN F ,  TREMAINE BRIAN P ,  SCHUMAN MARC

IPC: G02B6/26 ,  G02B6/35 ,  G02B26/08

CPC classification number: G02B6/359 ,  G02B6/266 ,  G02B6/352 ,  G02B6/3556 ,  G02B6/356 ,  G02B6/357 ,  G02B6/3588 ,  G02B6/3594

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 electrode (228) and the membrane (222) deforms the membrane (222) thereby attenuating an impinging beam of light (108).