Title :
Comments on "Optical amplifier noise figure reduction for optical single-sideband signals"
Author :
Summerfield, Mark A.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
Abstract :
In a recent paper (see Proc. Inst. Radio Eng., vol.32, p.419, 1944). it was demonstrated that a noise figure below the so-called "quantum limit" is possible using single-sideband (SSB) modulation. In this comment we discuss the interpretation of this result and its implications for optical communications systems.
Keywords :
laser noise; optical fibre amplifiers; optical fibre communication; optical modulation; optical noise; noise figure; optical amplifier noise figure reduction; optical communications systems; optical single-sideband signals; quantum limit; single-sideband modulation; Amplitude modulation; Fluctuations; Noise figure; Optical amplifiers; Optical fiber communication; Optical modulation; Optical noise; Semiconductor optical amplifiers; Signal to noise ratio; Stimulated emission;
Journal_Title :
Lightwave Technology, Journal of
