Title :
Impact of 1/f-type FM noise on coherent optical communications
Author_Institution :
University of Tokyo, Department of Electronic Engineering, Tokyo, Japan
Abstract :
When a semiconductor laser operates in a high power state, the l/f-type FM noise is a dominant cause of spectral broadening. The degradation of the bit error rate performance of the heterodyne DPSK optical communication system due to such 1/f noise is calculated. The result shows that the 1/f noise is much less harmful than the white noise originated from spontaneous emission events.
Keywords :
optical communication equipment; phase shift keying; random noise; semiconductor junction lasers; 1/ f-type FM noise; BER; bit error rate performance; coherent optical communications; heterodyne DPSK optical communication system; high power state; semiconductor laser; spectral broadening; white noise;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870626
