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    • 2. 发明申请
    • Scalable and movable DWDM usage of CWDM networks
    • CWDM网络的可扩展和可移动的DWDM使用
    • US20050025488A1
    • 2005-02-03
    • US10889333
    • 2004-07-12
    • Steve WangJohnny ZhongJames Aldridge
    • Steve WangJohnny ZhongJames Aldridge
    • H04J14/02
    • H04J14/0213H04J14/021H04J14/0216
    • Systems and methods provide for the addition of DWDM modules to CWDM systems in order to increase bandwidth over existing lines. This allows for the expansion of communications capacity without the need to replace existing CWDM systems. The DWDM modules can be transparently inserted into the CWDM systems by, in the CWDM system, reserving a channels for use by the DWDM. The DWDM system then occupies that channel with a scalable number of DWDM wavelength channels, for example four, eight, or sixteen. The DWDM systems can be used in both single and dual fiber systems as well as ring systems. Use of single fiber systems is obtained by implementing coupling devices, such as interleavers, passband filters, and circulators, that can used in pairs to couple bidirectional signals over a single fiber.
    • 系统和方法提供了向CWDM系统添加DWDM模块,以便增加现有线路的带宽。 这样可以扩展通信容量,而无需更换现有的CWDM系统。 在CWDM系统中,DWDM模块可以透明地插入到CWDM系统中,保留DWDM使用的通道。 DWDM系统然后以可缩放数量的DWDM波长信道占用该信道,例如四个,八个或十六个。 DWDM系统可用于单纤维和双纤维系统以及环形系统。 单纤维系统的使用通过实现诸如交织器,通带滤波器和循环器之类的耦合器件获得,其可以成对使用以通过单个光纤耦合双向信号。