 Description
WDM Module mainly consists of WDM devices. It is a kind of wavelength division multiplexing technology based on TFF (thin film filter). 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 module specification
Parameter Specification
Channels Number 1x2 1x4 1x8 1x16 1x18
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) 0.7/1.0 1.4/1.7 2.0/2.5 3.5/4.0 4.0/4.5
Pass Band Isolation(dB) Adjacent 30
 Non-Adjacent 45
Pass Band Ripple (dB) 0.3 0.4 0.5 0.5 0.5
Polarization Dependent Loss (dB) 0.2
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
Box packing Dimension (mm) 100*80*10 140*115*18
LGX Type LGX 1U, LGX 2U
19” Rack Mount Type 1U
Tray Type Customized
 DWDM module specification
Parameter Specification
Channel Spacing (GHz) 100 200
Channels Number 1x4 1x8 1x16 1x4 1x8 1x16
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) 1.8 3.0 4.0 1.7 2.9 3.8
Pass Band Ripple (dB) 0.35 0.4 0.5 0.35 0.4 0.5
Pass Band Isolation(dB) Adjacent 25 28
 Non-Adjacent 40
Polarization Dependent Loss (dB) 0.2
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
Box packing Dimension (mm) 100*80*10 140*115*18
LGX Type LGX 1U, LGX 2U
19” Rack Mount Type 1U
Tray Type Customized
Notes:
1.  Above spec does not include connectors.
2.  To add 0.2dB loss for one connector.