提出了一种新型大规模全光星形耦合器。这种星形耦合器不但能提供巨大的端口数 ,而且由其构成的波分复用 (WDM )星形网具有极大的组网灵活性 ,能方便地实现网络的在线扩容、升级 ,满足未来超大规模双向波分复用网络系统的需求 ,同时也适用于目前广泛应用的单向波分复用网络系统 A new type of large-scale all-optical star coupler is proposed. This star coupler can not only provide a huge number of ports, but also the WDM star network formed by it has great networking flexibility, and can conveniently realize online expansion and upgrade of the network and satisfy The future of large-scale two-way WDM network system needs, but also applies to the widely used one-way WDM network system