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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Optical switch is chiefly used in OXC (optical Cross Connection) system in optical network. It can fulfill many functions such as routing, selecting opticalwavelength and OXC etc.
The WDM optical networks employing routing and wavelength assignment (RWA) are considered as the most competitive candidates for next generation backbone networks.