 Description
The 3-port WDM device is mainly used in the passive wavelength division multiplexing module. It is a kind of wavelength division multiplexing technology based on TFF (thin film filter). It has a variety of package sizes and wavelength options. It consists of three ports: COM, Pass and Reflect. The wavelength range meets the ITU standard. It can be Mux, Demux or add-drop multiplexing different light in WDM system. Signals, as well as increasing signal transmission speed and communication capacity, are widely used in telecommunications, radio and television, enterprise network, campus network and other fields.
 Feature
Low insertion loss, high isolation
Excellent temperature stability
Epoxy free in optical path
Telcordia standard
RoHS compliance
 Application
Metro/Access network
WDM system
Fiber optical amplifier
CATV system
5G telecom network
 Product Specification
 CWDM device specification
Parameter Specification
Center Wavelength (nm) ITU
Pass Band Width (nm) ITU±6.5
Operation Wavelength (nm) 1260~1620
Channel Spacing (nm) 20
Fiber Type SMF-28e or customize
Pass Band Insertion Loss(dB)
(P Grade/A Grade) 0.4/0.6
Pass Band Isolation(dB) Adjacent 30
 Non-Adjacent 45
Pass Band Ripple (dB) 0.3
Reflect Band Insertion Loss(dB)
(P Grade/A Grade) 0.25/0.35
Reflect Band Isolation(dB) 15
Polarization Dependent Loss (dB) 0.1
Polarization Mode Dispersion (ps) 0.1
Return Loss (dB) 45
Directivity (dB) 50
Maximum Optical Power (mw) 300
Operation Temperature (℃) -40～85
Storage Temperature (℃) -40～85
Bare Device Dimension (mm) Ф4.2*30
Steel Tube packing Dimension (mm) Ф5.5*40
 DWDM device specification
Parameter Specification
Channel Spacing (GHz) 100 200
Center Wavelength (nm) ITU Grid
Center Wavelength Accuracy (nm) ± 0.05 ± 0.1
Pass Band Width (@-0.5dB) (nm) 0.22 0.5
Fiber Type SMF-28e or customize
Pass Band Insertion Loss(dB)
(P Grade/A Grade) 0.6/0.8 0.6/0.8
Pass Band Ripple (dB) 0.35 0.35
Pass Band Isolation(dB) Adjacent 25 28
 Non-Adjacent 40
Reflect Band Insertion Loss(dB)
(P Grade/A Grade) 0.25/0.35
Reflect Band Isolation(dB) 13
Polarization Dependent Loss (dB) 0.1
Polarization Mode Dispersion (ps) 0.1
Return Loss (dB) 45
Directivity (dB) 50
Maximum Optical Power (mw) 300
Operation Temperature (℃) -40~85
Storage Temperature (℃) -40~85
Bare Device Dimension (mm) Ф4.2*30
Steel Tube packing Dimension (mm) Ф5.5*40

 FWDM device specification
Parameter Specification
Operation Wavelength (nm) 1260~1620
Pass Band Wavelength (nm) 1460~1620
Reflect Band Wavelength (nm) 1260~1420
Fiber Type SMF-28e 或者客户指定
Pass Band Insertion Loss(dB)
(P Grade/A Grade) 0.4/0.6
Pass Band Isolation(dB) 30
Pass Band Ripple (dB) 0.3
Reflect Band Insertion Loss(dB)
(P Grade/A Grade) 0.25/0.35
Reflect Band Isolation(dB) 15
Polarization Dependent Loss (dB) 0.1
Polarization Mode Dispersion (ps) 0.1
Return Loss (dB) 45
Directivity (dB) 50
Maximum Optical Power (mw) 500
Operation Temperature (℃) -40～85
Storage Temperature (℃) -40～85
Bare Device Dimension (mm) Ф4.2*30
Steel Tube packing Dimension (mm) Ф5.5*40

Notes:
1.  Above spec does not include connectors.
2.  To add 0.2dB loss for one connector.