Title :
Measurement of semiconductor laser amplifier noise figure in coherent optical transmission system
Author :
Walker, G.R. ; Steele, R.C. ; Walker, N.G.
Author_Institution :
British Telcom Res. Labs., Ipswich, UK
Abstract :
Reports the first detailed investigation of the effect of semiconductor laser amplifier noise figure on the sensitivity of a heterodyne receiver. Independent measurement of the amplifier spontaneous noise spectral density confirms that local oscillator-spontaneous emission beat noise accounts for all of the observed penalty.
Keywords :
electron device noise; optical communication equipment; optical noise measurement; semiconductor junction lasers; SNR; amplifier spontaneous noise spectral density; coherent optical transmission system; heterodyne receiver; local oscillator-spontaneous emission beat noise; noise figure; semiconductor laser amplifier; sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19891124
