Demultiplexing of data provides passive process for handling of data stream that is fed through an optical transmission path

摘要

The system has a pulsed laser (60) input to a star coupler (64) connected to optical modulators (68) and a further star coupler (71). The output feeds to a polarising splitter (76) and the optical data is fed through a cable (78) to a 2 x 2 coupler (92) through a polarising arrangement.