Our Applications & Solutions

Optical WDM Module, 1310, 1550nm


Optelian’s L-020 Dual Wavelength Division Multiplexing (WDM) module is a passive, wideband, dual-port, bidirectional multiplexing and demultiplexing module that integrates 1310 nm and 1550 nm optical signals onto a common optical fiber.


  • The L-020 Dual WDM module can be used in either a bidirectional or unidirectional configuration.
  • The module is designed to provide high isolation with low loss.
  • In the unidirectional application, the 1310 nm and 1550 nm signals travel in the same direction on the single fiber connected to the COM port. Light from the two wavelength-specific ports is coupled and directed onto the COM port.
  • In the bi-directional application, light from the 1310 nm source travels in one direction, while light from the 1550 nm source travels in the opposite direction on the single fiber connected to COM.

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