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Optical switching unit, particularly for switching to standby components in optical transmission systems
Optical switching unit, particularly for switching to standby components in optical transmission systems
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机译:光交换单元,特别是用于切换到光传输系统中的备用组件的光交换单元
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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.
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机译:公开了一种光交换单元,其允许从光传输系统中的故障组件切换到备用组件。与此相关的组件例如可以是发射激光器或光纤。根据本发明的光交换单元(OSE)包含n×m个光空间交换器(ORS),其端口(P 1 B> A ... PNA; P 1 B> B ……PMB)由光电二极管(M 1 B> A,M 1 B> B)监视。光电二极管向控制单元(SE)提供有关是否以及如果有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。交换单元自身进行控制,即不需要合并更高级别的控制中心。因此,它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。
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