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wdm ?

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wdm ?

please let me know the basic parameters of a wavelength division multiplexing system ?
my email :[email protected]
thank  you !

Edited by: admin on 05/16/2010 - 04:32
Re: wdm ?
harinder (not verified)

A WDM system uses a multiplexer at the transmitter to join the signals together, and a demultiplexer at the receiver to split them apart. With the right type of fiber it is possible to have a device that does both simultaneously, and can function as an optical add-drop multiplexer. The optical filtering devices used have conventionally been etalons, stable solid-state single-frequency Fabry–Pérot interferometers in the form of thin-film-coated optical glass.


wavelength-division multiplexing (WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e. colours) of laser light.
2 types of WDM: 1.) Coarse WDM 2.) Dense WDM
wavelength-division multiplexing is commonly applied to an optical carrier (which is typically described by its wavelength), whereas frequency-division multiplexing typically applies to a radio carrier..

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