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DWDM Optical Multiplexers




DWDM Optical Multiplexers/Demultiplexers (MUX/DEMUX) are designed to combine and separate signals, which are transmitted over single-mode fibers at C-band wavelengths of the DWDM.

A single-fiber DWDM multiplexer allows to organize up to 40 duplex or up to 80 simplex optical channels in one single-mode fiber. A dual-fiber DWDM multiplexer consists of two single-fiber multiplexers combined in one rack. Such multiplexers allow to organize up to 80 duplex optical channels or up to 160 simplex optical channels in dual fibers.


Standard optical DWDM multiplexers are configured with 2/4/8/12/16/20 duplex channels and 1 port (Express), which is used to ensure the scalability of DWDM-based solutions.


DWDM multiplexers organize the physical data transmission medium, therefore their parameters do not depend on the type of transmitted data and protocols.



  • organization of up to 80 channels in a single fiber;
  • unlimited transmission rate;
  • completely passive device;
  • no problems with breakdowns, reboots;
  • low insertion losses;
  • high channel isolation;
  • low reflection of signals;
  • independence from transmission protocols;
  • low unit cost of one channel.
  • Connector type: LC/FC/SC;
  • Design options:
  • 19-inch rack-mountable;
  • standalone in a metal case;
  • ABS plastic box.
  • availability of Express Port;
  • Operating temperature range: -5°C ~ +70°C;
  • Storage temperature: -40°C ~ +85°C.







Single fiber

Duplex fiber


Up to 40

Up to 80 

Wavelengths range , nm 

  1528.77 - 1563.86 step 0.8

Accuracy, nm 

  ITU ± 0.05

Return loss, dB 

> 45

Insertion loss, dB

  < 6,3

Channel isolation, dB

> 30

Maximum input optical power, mW

< 300

Package dimension, mm

432 х 203 х 44 (rack 19”)
100 x 80 x10 (ABS box)




Checkout: DWDM Optical Multiplexers