北亿纤通生产的膜片式保偏耦合器（Filter Coupler），能使在光纤中传输的光信号在特殊结构的耦合区发生耦合，进行光功率的再分配，可以根据需要实时监控，制作不等分耦合器，保偏耦合器广泛用于通信系统，光纤激光器和光纤传感系统等领域。产品通过Telcordia GR-1221-CORE试验，符合RoHS要求。

产品特点
● 低附加损耗
● 多种耦合比
● 紧凑的尺寸
● 高偏振消光比（PER）
● 高稳定性和可靠性

应用领域
● 光纤激光器
● 光纤传感
● 光纤放大器
● 光通信领域研究

产品指标

* 测温环境在23° C ；
**以上指标不含连接头，双轴工作消光比降低2dB,损耗增加0.2dB；
***如果增加连接头，插入损耗增加0.3dB,回损降低5dB,对于保偏产品消光比降低2dB，连接键与慢轴对齐。

选型信息

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.