PM Filter Wavelength Division Multiplexer (FWDM)
Product features:Application:
Low insertion lossCWDM/DWDM Module
High return lossCATV System
High stability and reliabilityEPon/Gpon networks


Transmission Wavelengthnm1020~10801520~15801520~15801535~15651950~2050
Reflection Wavelengthnm960~990960~9901020~10801480±101570±10
Maximum transmission channel insertion loss (23℃)dB0.
Maximum insertion loss of reflection channel (23℃)dB0.
Minimum isolation of transmission channel (Reflection spectrum)dB2530252525
Minimum isolation of reflection channels (Transmission spectrum)dB1515151512
Maximum channel flatnessdB0.4
Min. Extinction Ratio (23℃)dB18
Maximum wavelength/temperature offsetnm/℃0.003
Maximum loss/temperature offsetdB/℃0.005
Minimum return lossdB50
Max. Handling Power(CW)mW300
Max. Pull forceN5
Working temperature0~+70 
Storage temperature-40~+85

For the devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower for each connector added. Connector key is aligned to low axis.


1111 - Center Wavelength:5506=T1550nm/R1064nm, 0698=T1064nm/R980nm, SSSS=Customize
2 - Pump Type:F=Forward Pump, B=Backward Pump
3 - Working Axial Direction:B=Both axis working, F=slow axis working / fast axis blocked
444 - Fiber Type (Com & Pass):001=PM1550, 003=PM980, SSS=Customize
 555 - Fiber Type (Ref):001=PM1550, 003=PM980, 004=HI1060, 008=SMF-28E, SSS=Customize
   6 - Package Dimension:0=φ5.5x35mm, S=Customize
   7 - Fiber Pigtail Type:0=Bare Fiber, 1=900μm Loose Tube
   8 - Fiber Pigtail Length:0.75=0.75m, 1.0=1m, 1.5=1.5m, S=Customize
 999 - Connector Type:0=FC/UPC, 1=FC/APC, 2=SC/UPC, 3=SC/APC, N=No Connector, S=Customize

Relevant recommendations