Title :
Ultimate limits of subcarrier multiplexed lightwave transmission
Author :
Alameh, Kamal ; Minasian, Robert A.
Author_Institution :
Sch. of Electr. Eng., Sydney Univ., NSW, Australia
fDate :
7/4/1991 12:00:00 AM
Abstract :
An analysis of the fundamental limits in SCM lightwave transmission is presented. The system studied comprises an ideal overmodulated laser transmitter with nonsymmetrical threshold clipping and a shot-noise limited receiver. The power spectral density of the nonlinear distortion noise is evaluated and the optimum modulation index mopt is determined. Results are given for the ultimate requirements for VSB-AM and FM SCM modulation formats.
Keywords :
frequency division multiplexing; information theory; optical communication; FM SCM modulation formats; SCM lightwave transmission; VSB-AM; fundamental limits; ideal overmodulated laser transmitter; nonlinear distortion noise; nonsymmetrical threshold clipping; optimum modulation index; power spectral density; shot-noise limited receiver; subcarrier multiplexed lightwave transmission; ultimate limits; ultimate requirements;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19910790