1. Coarse Wavelength Division Multiplexer (CWDM Module)
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    Coarse Wavelength Division Multiplexer (CWDM Module)

    Model CWDM-4/8
    Price:   US$330.00 US$270.00
    Available Options:
    Center Wavelength:
    Channel Number:
    Connector Type:

Coarse Wave Division Multiplexing (CWDM) modules combine or split up to 18 wavelengths into a single fiber. CWDM technology uses ITU standard 20nm spacing between the wavelengths, from 1270nm to 1610nm.
Our CWDM module has 4 to 18 channels. The central wavelength of each channel is specified to one of the ITU-T grid wavelengths.
The CWDM module features wide channel bandwidth (13nm). Its isolation is greater than 30dB for adjacent channels, and greater than 40dB for non-adjacent channels. The module also has high thermal stability to ensure reliable performance under different environment.


  • Based on proven thin-film filter technology
  • Low insertion loss
  • High channel isolation
  • High stability and reliability


  • CWDM metro and access broadband networks
  • CATV systems
  • Fiber optic amplifiers


Ordering Information:

a: Channel Number, a=4 for four channel module, a=8 for eight channel module.
b: Start Channel Wavelength in nm; b=1470, b=1510, etc.
c: Pigtail Type, c=1 for 900 micron loose tube pigtail, c=2 for 2mm jacket pigtail, etc.
d: Connector Type, d=FA for FC/APC, d=SU for SC/UPC, d=N for no connectors, etc.

Example: CWDM-4-1470-1-SU

See also: DWDM Modules - 200GHz Channel Spacing and 1310/1550nm WDM Couplers CWDM device Module, Modules, CWDM Filter, Filters, mux demux coarse wavelength devision 4 8 16 channels ITU-T grid