Wdm techincal requirements for metropolitan optical transport network wdn ring 城市光传送网波分复用
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The ultranet wave multiplexer concentrates up to 16 input channels on either a single fiber optic strand or a fiber optic cable pair . each input channel is capable of data rates up to 2 . 5 超网波分复用器( uwm )将多达32路光路( c波段和l波段)集中在单根光纤或一对光纤上传输，每个光路最大
