Wavelength Division Multiplexers or Demultiplexers (WDM) com-
bine or separate optical signals with different wavelengths.
They are passive optical components for uni- or bidirectional
operation.
The FOC Mini CWDM modules are based on the TFF technology.
They integrate up to 8 CWDM channels and one optional
extension port. The modules are based on a complex and sta-
ble internal structure drastically reducing their footprint in
comparison with other solutions. They combine excellent cli-
matic stability, low attenuation and high long-term reliability in
line with
TELCORDIA requirements.
Features
■ Low Insertion Loss and high channel isolation
■ Compact basic design for optimum system integration
■ High Return Loss
■ High thermal, mechanical and environmental stability to
m
eet the requirements of Telcordia GR-1209 and GR-1221
■ Option of manufacture to customer specifications
Applications
■ CWDM transmission systems
■ Link monitoring
■ Add-Drop-Multiplexing
■ Metropolitan networks
■ CATV systems
Designs
■ Supplied in various housing sizes with buffered tube pig-
tails or reinforced cable pigtails
■ All connector standard types are available
For check lists and additional ordering information for our pro-
ducts visit our website or see separate data sheets.
For a complete overview of components visit our website at www.foc-fo.com.
Components ► Filter
► CWDM ►
Mini-CWDM Module
FOC – fibre optical components GmbH
Barbara-McClintock-Str. 5 I 12489 Berlin, Germany
p +49 30 565507-0 I f +49 30 565507-19
w www.foc-fo.com I e info@foc-fo.de
Release 22.04.2020
Subject to modifications
DBE-COM-0160V005
Page 1 of 2
FOC Mini-CWDM Module
Optical parameter
Dimensions
4 - channel
CWDM
4+1- channel
CWDM
8 - channel
CWDM
8+1- channel
CWDM
Parameter Value Value
Center wavelength CWDM channels
(1)
[nm] custom-made custom-made
Channel spacing CWDM channels [nm] 20 20
Bandwidth CWDM channels [nm] ≥13 ≥13
Max. Insertion Loss CWDM channels
(2,4)
[dB] 1,0 1,5
Max. Insertion Loss Upgrade channel
(4)
[dB] - 1,0 - 1,5
Min. Isolation CWDM channels [dB] 30 30
Min. Isolation Upgrade channel [dB] - 30 - 30
Max. Ripple CWDM channels [dB] 0,3 0,3
Min. Return Loss [dB] 45 45
Max. Polarisation Dependent Loss (PDL) [dB] 0,2 0,2
Max. Input Power [mW] 500 500
Temperature Range [°C] Operation
(3)
Storage/Transportation
-20 to +70
-40 to +85
-20 to +70
-40 to +85
Temperature Dependent Loss (TDL) [dB/°C] ≤ 0,005 ≤ 0,005
Thermal wavelength change [nm/°C] ≤ 0,003 ≤ 0,003
(1)
All center wavelengths according to ITU-T G.694.2 (CWDM grid) available
(2)
Typical 0.8dB for 4- and 4+1-channel CWDM / typical 1dB for 8 and 8+1-channel CWDM
(3)
For 900µm solid core optical fiber pigtails, value depending on pigtail design
(4)
Without connectors
180
31
201.5