Title :
Recent progress in heterodyne/coherent optical-fiber communications
Author :
Okoshi, Takanori
Author_Institution :
University of Tokyo, Tokyo, Japan
fDate :
8/1/1984 12:00:00 AM
Abstract :
Research and development of heterodyne/coherent optical-fiber communications are being accelerated because of the possibility of 20-30-dB receiver sensitivity improvement. In this paper, after brief descriptions of the history of the R & D and the classification of various techniques, recent achievements in the bit-error rate (BER) measurement of heterodyne/coherent systems are reviewed and compared with theory. The experimental systems described range from simple on-off-keying (PCM-PSK) heterodyne to sophisticated phase-shift keying (PCM-PSK) heterodyne or homodyne systems.
Keywords :
Heterodyning; Optical fiber communication; Phase-shift keying; Pulse-code modulation; Amplitude shift keying; Bit error rate; Bit rate; Envelope detectors; Optical fiber communication; Optical mixing; Optical noise; Optical receivers; Optical sensors; Silicon compounds;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1984.1073642
