APPLICATION SCHEMES OF WDM TRANSPONDER (O-E-O)
The WDM (Wavelength Division Multiplexing) transponders, also called O-E-O (optical-electrical-optical) wavelength converters are widely deployed in a variety of networks and applications nowadays, especially the in WDM networking system. In the previous article “ What’s the Difference Between Transceiver & Transponder? “, we have learn that the basic concept about the transponder and make clear the difference with transceiver. Today, I am going to talk something about the applications of WDM transponders through several practical cases. Reviewing the Concept of WDM Transponder WDM transponder is an optical-electrical-optical (O-E-O) wavelength converters which is designed to performs an O-E-O operation to convert wavelengths of light. Figure 1 shows bidirectional transponder operation (the transponder is located between a client device and a DWDM system). From left to right, the transponder receives an optical bit stream operating at one particular wavelength (1310 nm). And t...