Optical switching unit, particularly for switching to standby components in optical transmission systems
    1.
    发明授权
    Optical switching unit, particularly for switching to standby components in optical transmission systems 失效
    光开关单元,特别是用于切换到光传输系统中的备用组件

    公开(公告)号:US06396602B1

    公开(公告)日:2002-05-28

    申请号:US08982734

    申请日:1997-12-02

    IPC分类号: H04B1000

    CPC分类号: H04Q11/0001

    摘要: An optical switching unit is disclosed which permits switching from faulty components to standby components in optical transmission systems. A component in this connection may be a transmit laser or an optical fiber, for example. The optical switching unit (OSE) according to the invention contains an n×m optical space switch (ORS) whose ports (P1A . . . PNA; P1B . . . PMB) are monitored by photodiodes (M1A, M1B). The photodiodes provide a control unit (SE) with information as to whether and, if so, what signals are arriving at the ports. The control unit (SE) controls the position of the optical switch (ORS) in accordance with program instructions. The switching unit controls itself, i.e., incorporation of a higher-level control center is not necessary. It thus allows very short switching times and has many applications; it is particularly suitable for use in modular optical transmission systems.

    摘要翻译: 公开了一种光开关单元,其允许从光传输系统中的故障组件切换到备用组件。 例如,这种连接中的部件可以是发射激光器或光纤。 根据本发明的光开关单元(OSE)包含由光电二极管(M1A,M1B)监测其端口(P1A ... PNA; P1B ... PMB)的nxm光空间开关(ORS)。 光电二极管为控制单元(SE)提供关于是否和(如果是)什么信号到达端口的信息。 控制单元(SE)根据程序指令控制光开关(ORS)的位置。 切换单元控制自身,即不需要并入上级控制中心。 因此允许非常短的切换时间并具有许多应用; 它特别适用于模块化光传输系统。