发明授权
US06208443B1 Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering
失效
动态光分插复用器和波长路由网络具有提高的生存性和最小化的频谱滤波
- 专利标题： Dynamic optical add-drop multiplexers and wavelength-routing networks with improved survivability and minimized spectral filtering
- 专利标题（中）： 动态光分插复用器和波长路由网络具有提高的生存性和最小化的频谱滤波
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申请号： US09135957申请日： 1998-08-18
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公开(公告)号： US06208443B1公开(公告)日： 2001-03-27
- 发明人: Karen Liu , Weyl-Kuo Wang , Chaoyu Yue
- 申请人： Karen Liu , Weyl-Kuo Wang , Chaoyu Yue
- 主分类号： H04J1402
- IPC分类号： H04J1402
摘要：
A method and apparatus for constructing an optical wavelength-routing network in which each network node is a dynamic add-drop multiplexer (OADM) with minimized spectral filtering effect on pass-through channels and survivability upon power failure. By using cascaded tunable reflection filters as the building blocks, strictly add-drop non-blocking OADMs for single input/output fibers, double input/output fibers, and 3 input/output fibers can be constructed for application to unidirectional and bidirectional ring networks and mesh networks of arbitrary degree. Methods and apparatus for minimizing various types of out-of-band and in-band crosstalk occurring within the dynamic OADMs are also described.
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