This artitle provides the linear and ring link configurations for single-channel interfaces of DWDM multichannel optical systems in physical point-to-point and ring applications.
Linear Configuration in WDM Systems
The generic representation of a linear configuration is shown in Figure 1 where the DWDM network elements include an optical multiplexer (OM) and an optical demultiplexer (OD), which are used as a pair with the opposing element, one or more optical amplifiers and may also include one or more OADMs. n WDM optical channels are carried on one output fiber of a multichannel transmitter equipment.
Ring Configuration in WDM Systems
In Figure 2 an example is shown of a ring configuration where the DWDM network elements include one or more amplifiers and two or more OADMs connected in a ring.
The ring is formed from high bandwidth optical fibre forming point to point links between nodes.
For single-channel connection (SS and RS) between transmitters (Tx) and receivers (Rx). Here the DWDM network elements include one or more amplifiers and two or more OADMs connected in a ring.
The reference points in Figures 2 are defined as follows:
– SS is a single-channel reference point at the DWDM network element tributary input;
– RS is a single-channel reference point at the DWDM network element tributary output.
Lfiber in Fiber Optic Communication Field
Lfiber offers flexible linear and ring link configurations in WDM systems. Ring with or without optical add drop multiplexing (OADM) is available. We specialize in the fields of light (photon) transmission, switching, amplification, detection & sensing.
To meet the increasing critical technical demands of existing optical transmission network (OTN) framework, high-speed passive optical networks (PON), fiber lasers and fiber optic sensing applications, Lfiber has invested a great deal of time and effort in R&D. We are and always will be promoting higher speed interconnections and more reliable optical network.
Click the following link to learn more and Discover the Fiber-optic World.