公开(公告)号：WO02082157A9

公开(公告)日：2003-07-31

申请号：PCT/US0210803

申请日：2002-04-05

Applicant: CORNING INC

Inventor： HEMENWAY BREWSTER ROE JR ,  LELIC IZUDIN ,  SOULLIERE MARK J ,  TEBBEN DANIEL J ,  ZHAO XUXING ,  LI MING-JUN

IPC: H04J14/02 ,  G02B6/28 ,  H04B10/08

CPC classification number: H04J14/0295 ,  H04J14/0201 ,  H04J14/0283 ,  H04J14/0291

Abstract: The present invention is directed to a protection switch (10) for use in a node of a two-fiber optical shared protection ring. The two-fiber optical shared protection ring propagates at least one bi-directional channel. The switch includes an N x N optical switch fabric system disposed in the node. The N x N optical switch fabric (20) includes 2N input/output (I/O) ports, wherein N is four, or an integer multiple of four. Each optical switch fabric (20) is configured to switch at least one bi-directional channel. At least N three-port optical devices (40, 42, 46, 48, 50, 52, 54) are coupled to N of the I/O ports. Each three-port optical device (40, 42, 46, 48, 50, 52, 54) includes a bi-directional port coupled to an I/O port. The bi-directional port is configured to propagate the at least one bi-directional channel.

Abstract translation: 本发明涉及一种用于双光纤共享保护环的节点中的保护开关（10）。 双光纤共享保护环传播至少一个双向通道。 交换机包括设置在节点中的N×N光交换机系统。 N×N光交换结构（20）包括2N个输入/输出（I / O）端口，其中N为4，或4的整数倍。 每个光交换结构（20）被配置为切换至少一个双向信道。 至少N个三端口光学设备（40,42,46,48,50,52,54）耦合到I / O端口的N个。 每个三端口光学设备（40,42,46,48,50,52,54）包括耦合到I / O端口的双向端口。 双向端口被配置为传播至少一个双向信道。