

产品详情
产品介绍
DCM是北亿纤通科技有限公司推出的负色散光纤,是针对现已铺设的G.652& G.655标准单模光纤而设计的一种新型单模光纤;G.652标准光纤在1550nm附近波长的色散是正的(17-20)ps/(nm·km),G.655标准光纤在1550nm波长的色散是正的(4-6)ps/(nm·km),并且具有正的色散斜率;
因此需要在这些光纤中加接具有负色散的色散补偿光纤,进行色散补偿,以保证整条光纤线路的总色散近似为零,从而实现高速度、大容量、长距离的通信。
色散补偿原理
色散是光纤的传输特性之一,光脉冲信号在光纤中传输一段距离以后将出现时间上的展宽,产生码间干扰,从而增加误码率,影响通信质量。
● 数据速率越高,越容易产生码间串扰
● 传输距离越长,越容易产生码间串扰
产品规格
产品型号 | DCM20A | DCM40A | DCM60A | DCM80A | DCM100A |
等效G.652补偿长度 | 20km | 40km | 60km | 80km | 100km |
1545nm波长色散 | -340±20 (ps/nm) | -670±30 (ps/nm) | -1000±40 (ps/nm) | -1340±50 (ps/nm) | -1670±60 (ps/nm) |
1545nm波长相对色散斜率 | 0.004±20%(nm-1) | ||||
插入损耗 | ≤3.6 dB | ≤4.8 dB | ≤6.8 dB | ≤8.7 dB | ≤9.7 dB |
偏振模色散 | ≤0.6 ps | ≤0.9 ps | ≤1 ps | ≤1 ps | ≤1 ps |
标称单波输入光功率 | ≤0 dBm | ||||
光接口 | 所有接口均为LC型 | ||||
典型功耗 | 0W(无源器件) | ||||
MTBF | >20万小时 | ||||
占用槽位数量 | 2槽(40km以上色散补偿板需单独配置DCM无源机框) |
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.