USource PWDM 是一款FWDM带PD探测器的filter, 主要用于三网融合里的光纤入户场景，将CATV 1550的带宽的电视信号分离到PD探测器，PD焊接到光猫里。

Common 2 models

Model 1:  Pass band 1540-1560nm for CATV, reflect band 1260-1500nn for GPON

Model 2:  Pass band 1546-1562nm for CATV, reflect band 1260-1530nn and 1575-1650nm

WDM filter without terminated PD

WDM filter with terminated PD