It is used in routing switch wavelength choice optical cross connection natural repair protection and so on.

光开关可实现在全光层的路由选择、波长选择、光交叉连接以及自愈保护等功能。

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We introduce a general model for the calculation of the optical signal to noise ratio (SNR) of the optical cross connection (OXC) in optical networks in this paper.

文章给出了计算OXC级联信噪比的一般解析模型，并针对“信号功率均衡”和“总功率均衡”两种方案进行了研究，分析了在这两种特定情况下系统的信噪比特性。

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Optical switch is chiefly used in OXC (optical Cross Connection) system in optical network. It can fulfill many functions such as routing, selecting optical wavelength and OXC etc.

它主要用于光网络的光交叉(OXC)节点系统中，用来实现全光层次的路由选择、波长选择、光交叉连接等功能。

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