公开(公告)号：US20150326955A1

公开(公告)日：2015-11-12

申请号：US14409745

申请日：2013-05-10

Applicant: BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

Inventor： Andrew LORD ,  Richard Andrew JENSEN

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04J14/0204 ,  H04J14/02 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/026 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0052

Abstract: An upgradable optical router for use in an optical switching network. In an initial configuration, the optical router includes wavelength selective switches configured to switch optical signals having WDM wavelengths positioned in a grid having exactly 100 GHz (about 0.8 nm) spacing in optical frequency, aka fixed grid. The interface ports within the optical switch include an optical splitter and optical coupler and additionally space for a second selective switch. At a later point in time, a second wavelength selective switch can be added to provide additional capabilities such as switching wavelengths positioned in a flexible grid.

Abstract translation: 用于光交换网络的可升级光路由器。 在初始配置中，光路由器包括波长选择开关，其被配置为切换光学信号，所述光信号具有定位在光频中具有正好100GHz（约0.8nm）间隔的网格中的WDM波长，即固定网格。 光开关内的接口端口包括光分路器和光耦合器，另外用于第二选择开关。 在稍后的时间点上，可以添加第二波长选择开关以提供额外的能力，例如位于灵活网格中的开关波长。