公开(公告)号：US20020145778A1

公开(公告)日：2002-10-10

申请号：US10099561

申请日：2002-03-15

申请人： Photuris, Inc.

发明人： Thomas Andrew Strasser ,  Paul Bonenfant ,  Jefferson L. Wagener

IPC分类号： H04B010/08 ,  H04J014/02

CPC分类号： G02B6/356 ,  G02B6/29305 ,  G02B6/29367 ,  G02B6/29395 ,  G02B6/3512 ,  G02B6/3548 ,  G02B6/357 ,  G02B6/3578 ,  G02B6/4215 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0279 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q2011/0009 ,  H04Q2011/0016 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/003 ,  H04Q2011/0081

摘要： In a WDM optical communication system that includes a plurality of nodes interconnected by communication links, a node is provided that includes a reconfigurable optical switch having a plurality of input ports and at least one output port. The node also includes a plurality of transmitters that are each coupled to one of the input ports of the optical switch. Each of the transmitters generate an information-bearing optical signal at a different channel wavelength from one another. The reconfigurable optical switch is adaptable to receive at any of the input ports any of the channel wavelengths at which the plurality of transmitters operate and direct the channel wavelengths to the output port. At least one backup transmitter is coupled to one of the input ports of the optical switch. The backup transmitter includes a tunable laser tunable to any of the channel wavelengths at which the plurality of transmitters operate. The reconfigurable optical switch includes at least one wavelength selective element that selects at least one channel wavelength from among any of the channel wavelengths received at any of the input ports. The switch also includes a plurality of optical elements associated with the wavelength selective elements, Each of the optical elements direct one of the selected channel wavelengths selected by the associated wavelength selective element to the output port independently from every other channel wavelength. The selected channel wavelengths directed to the output port are combined on the output port.

摘要翻译： 在包括通过通信链路互连的多个节点的WDM光通信系统中，提供了包括具有多个输入端口和至少一个输出端口的可重新配置光开关的节点。 节点还包括多个发射机，每个发射机都耦合到光开关的一个输入端口。 每个发射机产生彼此不同信道波长的信息承载光信号。 可重构光开关适于在任何输入端口处接收多个发射器操作的任何信道波长，并将信道波长引导到输出端口。 至少一个备用发射器耦合到光开关的一个输入端口。 备用发射器包括可调谐激光器，可调谐到多个发射器操作的任何通道波长。 可重构光开关包括至少一个波长选择元件，其从在任何输入端口处接收的任何通道波长中选择至少一个信道波长。 开关还包括与波长选择元件相关联的多个光学元件。 每个光学元件将相关联的波长选择元件选择的所选择的通道波长中的一个独立于每隔一个通道波长引导到输出端口。 指向输出端口的所选择的信道波长在输出端口上组合。