Title :
Optical heterodyne communications systems
Author_Institution :
NEC Res. Inst., Princeton, NJ, USA
Abstract :
The potential of heterodyne systems is examined, beginning with a description of a typical optical heterodyne detection system. Sources for coherent systems are reviewed, and frequency agility is discussed. The problem of optical frequency determination and control is addressed. Two approaches for achieving polarization diversity reception are considered. Progress toward applying the techniques described is assessed.<>
Keywords :
diversity reception; coherent systems; frequency agility; optical communication; optical frequency control; optical frequency determination; optical heterodyne detection system; polarization diversity reception; Bandwidth; Optical filters; Optical mixing; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Phase detection; Phase modulation; Signal processing;
Journal_Title :
Communications Magazine, IEEE
