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。
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.
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。
It is used in routing switch wavelength choice optical cross connection natural repair protection and so on.
光开关与光开关阵列是DWD M光网络的关键器件，主要用来实现光层的路由选择、波长选择和光交叉连接等功能。
The optical switches and optical switch arrays, as key components in DWDM optical network, are used to implement the route selection, wavelength selection and optical cross-connect in optical layer.
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