Wavelength Division Multiplexing (WDM) systems use different types of sites to manage signal
transmission and amplification across long distances. These include:
OLA (Optical Line Amplifier):Amplifies optical signals to compensate for losses over long distances.
OTM (Optical Terminal Multiplexer):Located at the endpoints of the WDM system, it multiplexes and
demultiplexes wavelengths.
REG (Regenerator):Regenerates optical signals to restore their quality after significant attenuation.
OADM (Optical Add-Drop Multiplexer):Adds or drops specific wavelengths at intermediate points
without affecting others.
Each type of site plays a critical role in ensuring efficient and reliable operation of WDM networks.
Reference:
ITU-T G.694 Standard - WDM Architecture
Huawei WDM Solution Guide
