The invention relates to a system and a method for realizing dynamic wavelength scheduling and protection function of a wavelength division multiplex passive optical network. The system is: 1 central office end CO, through an optical fiber to connect N remote node RN to form an annular network, and the remote node RN is connected with the optical network unit ONU through the distributed optical fiber. Among them, the central office end CO mainly by N N optical transmitter, 1x2 optical switch, 3 AWG AWG erbium-doped fiber amplifier, 2 EDFA, two optical circulator, an optical coupler and N optical receiver; the remote node RN consists of 1 2x2 switch, 3 ring 1, a AWG 1 array waveguide grating coupler, a wavelength blocker WB and 1 1xN. The protection of feeder fiber is realized by the use of CO end light switch, the ring structure and the design of RN structure. The invention realizes the dynamic scheduling of the wavelength by adjusting the wavelength blocking device WB and changing the work port of the AWG, and the system achieves a balance between cost and performance. ?
【技术实现步骤摘要】
【技术保护点】
一种波分复用无源光网络实现动态波长调度和保护功能的系统，由中央局端ＣＯ（１）通过一根单模光纤连接ｎ个远端结点ＲＮ（１８，１９）形成环状结构，每个远端结点ＲＮ（１８，１９）通过分布光纤各连接ｍ个光网络单元ＯＮＵ（２０），其特征在于：所述的中央局端ＣＯ（１）是Ｎ＝ｎｍ个光发射机（５，８）分别经过Ｎ个光开关（６，９）分别连接至两个阵列波导光栅ＡＷＧ－－正常情况下，发射机１至发射机ｋｍ（５）与第二阵列波导光栅ＡＷＧ２（３）相连，发射机ｋｍ＋１至发射机ｎｍ与第一阵列波导光栅ＡＷＧ１（２）相连；ＡＷＧ１（２）和ＡＷＧ２（３）的输出经分别经第一相位调制器ＰＭ１（１０）和第二相位调制器ＰＭ２（１１）的调制，连接第一掺铒光纤放大器ＥＤＦＡ１（１４）和第二掺铒光纤放大器ＥＤＦＡ２（１５），第一掺铒光纤放大器ＥＤＦＡ１（１４）经环形器１（１２）与馈线光纤（３０）连接；第二掺铒光纤放大器ＥＤＦＡ２（１５）经环形器２（１３）连接至馈线光纤（３１），环形器１（１２）和环形器２ （１３）的一个端口分别连接第一和第二掺铒光纤放大器ＥＦＤＡ１、ＥＦＤＡ２（１４，１５），一端口连接馈线光纤（３０，３１），第三个端口通过一...
【技术特征摘要】
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