FULL DUPLEX LIGHTWAVE COMMUNICATION SYSTEM

摘要

FULL DUPLEX LIGHTWAVE COMMUNICATION SYSTEM Full duplex operation is achieved in a lightwave communication system by employing terminals having a distributed Bragg reflector (DBR) laser having separate electrically controllable Bragg reflector and gain sections. While operating as the basic heterodyne reception element, the DBR laser simultaneously generates lightwave signals for transmission to other terminals. External circuits process the electrical (intermediate frequency) signals from the simultaneously modulated and signal mixing laser to extract received information. In one embodiment, full duplex operation is described for an FSK lightwave communication system.